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Electric lamp and discharge devices

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Class / Patent application numberDescriptionNumber of patent applications / Date published
313483000 WITH LUMINESCENT SOLID OR LIQUID MATERIAL 3707
313567000 WITH GAS OR VAPOR 831
313011000 WITH TEMPERATURE MODIFIER 539
313118000 SPARK PLUGS 438
313110000 WITH OPTICAL DEVICE OR SPECIAL RAY TRANSMISSIVE ENVELOPE 227
313317000 WITH ENVELOPE 99
313326000 ELECTRODE AND SHIELD STRUCTURES 80
313001000 PLURAL UNIT 78
313364000 CATHODE RAY TUBE 68
313523000 PHOTOSENSITIVE 65
313310000 DISCHARGE DEVICES HAVING A THERMIONIC OR EMISSIVE CATHODE 58
313238000 WITH SUPPORT AND/OR SPACING STRUCTURE FOR ELECTRODE AND/OR SHIELD 53
313231010 FLUENT MATERIAL SUPPLY OR FLOW DIRECTING MEANS 52
313306000 DISCHARGE DEVICES HAVING THREE OR MORE ELECTRODES 31
313311000 DISCHARGE DEVICES HAVING AN ELECTRODE OF PARTICULAR MATERIAL 30
313309000 DISCHARGE DEVICES HAVING A MULTIPOINTED OR SERRATED EDGE ELECTRODE 27
313553000 WITH GETTER 26
313359100 WITH POSITIVE OR NEGATIVE ION ACCELERATION 17
313049000 WITH DETACHABLE ELECTRICAL CONNECTOR OR SUPPORT 13
313315000 INCANDESCENT LAMPS 12
313153000 WITH MAGNETIC DEVICE 12
313293000 DISCHARGING DEVICES WITH APERTURED ELECTRODE (E.G., GRID) INTERPOSED BETWEEN TWO ELECTRODES 9
313235000 IMPERFECT ELECTRICAL CONTACT BETWEEN ELECTRODES 9
313323000 COMBINED 9
313564000 HAVING VAPOR GENERATING MATERIAL 6
313313000 WITH ELECTRICAL SHIELD OR STATIC CHARGE DISTRIBUTION MEANS 6
313358000 MISCELLANEOUS (E.G., ELECTROLYTIC LIGHT SOURCE) 6
313234000 ELECTRODE EXTERIOR TO ENVELOPE 5
20090267478EXTERNAL ELECTRODE FLUORESCENT LAMP AND MANUFACTURING METHOD OF THE SAME - An external electrode fluorescent lamp includes a glass tube made of soft glass, and external electrodes affixed to outer surfaces of both ends of the glass tube. The fluorescent lamp further includes a joining material applied between at least the glass tube and the external electrodes for affixing the external electrodes, which are made up of a material having a thermal expansion coefficient that is larger than that of the glass tube. According to the manufacturing method of the fluorescent lamp, first, the external electrodes are attached to the outer surface of each end of the glass tube, the external electrodes are then immersed in fused solder, and finally, the glass tube is cooled to room temperature. In this manner, the external electrodes are affixed to the outer surface of the glass tube via soldering.10-29-2009
20120306347Ultraviolet Enhancer (UVE) Holder - An ultraviolet enhancer (UVE) holder (12-06-2012
20130241388FLASH LAMP - A flash lamp comprises an arc tube in which a pair of electrodes are provided there inside, a reflective film formed on an outer surface of the arc tube, a trigger wire arranged along the arc tube outside the reflective film, wherein ceramic material is used for the reflective film, and at an end of at least one of end portions of the arc tube, an end edge of the reflective film in a longitudinal direction is located in a front side of the electrode.09-19-2013
20140139099STROBE DEVICE - A compact strobe device includes the following components: a flash discharge tube having an anode on one side thereof and a cathode on the other side thereof; a conductive reflector composing an external trigger electrode, the reflector being in contact with and storing a part of the flash discharge tube; a trigger coil having a primary winding and a secondary winding wound around a hollow core; and an elastic conductor connecting the secondary winding of the trigger coil and the reflector. The trigger coil has an end of the flash discharge tube inserted into the core, and includes, at the end thereof adjacent to the reflector, a secondary terminal connected to the secondary winding. The conductor elastically deforms to be in contact with the secondary terminal of the trigger coil and a lateral side of the reflector.05-22-2014
20140167596STROBE DEVICE - A compact strobe device includes the following components: a flash discharge tube having an anode and a cathode; a conductive reflector storing a part of the flash discharge tube; a trigger coil having a hollow core, and a primary winding and a secondary winding around the core; and a conductor connecting the secondary winding of the trigger coil and the reflector. The trigger coil has an end of the flash discharge tube inserted into the core, and includes at an end thereof adjacent to the reflector, a secondary terminal connected to the secondary winding. The reflector has a bottom in contact with the outer peripheral surface of the flash discharge tube, the outer peripheral surface covering at least the region extending from the anode to the cathode. The conductor has a first contact portion in contact with the secondary terminal of the trigger coil, and a second contact portion in contact with the bottom of the reflector.06-19-2014
313062000 CYCLOTRONS 5
20080246385EGGBEATER TRANSPARENT CATHODE FOR MAGNETRONS AND UBITRONS AND RELATED METHODS OF GENERATING HIGH POWER MICROWAVES - An “eggbeater” cathode comprising a transparent cathode including a plurality of longitudinally oriented cathode strips anchored at both ends between support discs and forming an open-walled hollow cylindrical structure. A cathode base is disposed substantially coaxially with a longitudinal axis of the transparent cathode and surrounded by the plurality of cathode strips, wherein the support discs secure the cathode strips to the cathode base and result in a cathode that is more robust in harsh operating environments compared with a simple transparent cathode.10-09-2008
20100283371ISOTOPE PRODUCTION SYSTEM AND CYCLOTRON HAVING REDUCED MAGNETIC STRAY FIELDS - A cyclotron that includes a magnet yoke that has a yoke body that surrounds an acceleration chamber and a magnet assembly. The magnet assembly is configured to produce magnetic fields to direct charged particles along a desired path. The magnet assembly is located in the acceleration chamber. The magnetic fields propagate through the acceleration chamber and within the magnet yoke. A portion of the magnetic fields escape outside of the magnet yoke as stray fields. The magnet yoke is dimensioned such that the stray fields do not exceed 5 Gauss at a distance of 1 meter from an exterior boundary.11-11-2010
20110227470B-K electrode for fixed-frequency particle accelerators - An electrode for fixed-frequency particle accelerators geometrically compensating for relativistic mass increase by placing the acceleration gap at the location of the particle at each peak of the accelerating electric field.09-22-2011
20140139096CYCLOTRON - There is provided a cyclotron including: a hollow yoke; first and second poles disposed in the yoke; an ion source that generates an ion; a buncher of which at least a part enters the yoke and which adjusts a density of an ion beam, which is emitted from the ion source, in a traveling direction; and an inflector that deflects an ion beam having passed through the buncher to make the ion beam incident on a median plane.05-22-2014
20160381780Superconducting Magnet Winding Structures for the Generation of Iron-Free Air Core Cyclotron Magnetic Field Profiles - A superconducting air core cyclotron that replaces the iron core flutter field structure with an active superconducting wire structure with a superconducting main coil generating an isochronous field, and superconducting compensation coils generating the magnetic shield for the magnetic structure.12-29-2016
313010000 WITH TEMPERATURE INDICATOR 4
20090167133ELECTRONIC TUBE - An electronic tube and an improved system for actuating the electrodes and/or the heating of a tube and for determining the service life of a tube is provided. The electronic tube has an evacuated or gas-filled region, in which one or several electrodes as well as a device for measuring the temperature of one of the electrodes are arranged. The electrode temperature of a tube may be precisely determined with relatively little effort. The service life of the tube may be predicted more precisely. By monitoring the electrode temperature and correspondingly actuating the electrodes and/or the electrode heating, it is possible to keep the electrode temperature precisely to the desired value (target value).07-02-2009
20100084958LED Structure, Manufacturing Method Thereof and LED Module - A light emitting diode (LED) structure, a manufacturing method thereof and a LED module are provided. The LED structure has temperature sensing function. The LED structure comprises a composite substrate and an LED. The composite substrate comprises a diode structure whose P-type semiconductor region or N-type semiconductor region has a predetermined doping concentration. The diode structure is a temperature sensor, and the sensitivity of the temperature sensor is based on the predetermined doping concentration. The LED is disposed on the composite substrate. The diode structure is used for sensing the heat emitted from the LED.04-08-2010
20100219733LIGHT EMITTING DEVICE PACKAGE FOR TEMEPERATURE DETECTION - A light emitting device package and a lighting system are provided. According to one embodiment, a functional substrate; at least one light emitting element bonded onto the functional substrate; and at least one design-in thermal detection unit built onto the functional substrate are provided, wherein the design-in thermal detection unit is proximate to the light emitting element, and wherein the design-in thermal detection unit is configured to detect the temperature and transmit a temperature signal. The design-in thermal detection unit may be an NTC thermistor based on a semiconductor substrate. A control system may be included to detect temperature and make any necessary current adjustments in order to maintain consistent performance of the light emitting element.09-02-2010
20130278129SPARK GAP HAVING A PLURALITY OF SERIES-CONNECTED INDIVIDUAL SPARK GAPS, WHICH ARE LOCATED IN A STACK ARRANGEMENT - The invention relates to a spark gap comprising a number of series-connected individual spark gaps which are placed in a stack arrangement, which are spaced apart from each other by insulating material discs and are provided with a spring contact, the individual spark gaps including ring-shaped or disc-shaped electrodes, and further comprising control elements for influencing the voltage distribution over the stack arrangement. According to the invention the ring-shaped or disc-shaped electrodes required to form one of the respective individual spark gaps are each inserted into an insulating body and held by same in a centered manner. The respective insulating material discs are located between and fixed by the insulating bodies. A recess is provided inside the insulating body to receive and center the electrodes, whose shape is complementary relative to the contour of the respective electrode, wherein the recess comprises on the inner circumference at least partially elastic, resilient centering projections or centering noses.10-24-2013
313325000 MISCELLANEOUS DISCHARGE DEVICES 4
20090096346Sheet-shaped heat and light source, method for making the same and method for heating object adopting the same - The present invention relates to a sheet-shaped heat and light source. The sheet-shaped heat and light source includes a carbon nanotube film and at least two electrodes. The at least two electrodes are separately disposed on the carbon nanotube film and electrically connected thereto. The carbon nanotube film includes a plurality of carbon nanotubes arranging isotropically, along a fixed direction, or along different directions. Moreover, a method for making the sheet-shaped heat and light source and a method for heating an object adopting the same are also included.04-16-2009
20100176709Lamp base - The invention relates to a lamp base (07-15-2010
20100194261EVALUATION METHOD OF DEVICE LAYER STRUCTURE DESIGN FOR LIGHT EMITTING DEVICE, EVALUATION APPARATUS AND LIGHT EMITTING DEVICE - The present invention is intended to evaluate outgoing light from a light emitting device including a structure in which four or more layers of thin films, including a light-emitting layer, are laminated, in a shorter period of computation time, as compared with conventional methods. An evaluation method for the device layer structure design of a light emitting device is a method for evaluating outgoing light from a light emitting device including a structure in which four or more layers of thin films, including a light-emitting layer, are laminated, using an information processing apparatus, the method including: an input step (S08-05-2010
20130140976METHOD OF MANUFACTURING MICROFLUIDIC CHIP, MICROFLUIDIC CHIP, AND APPARATUS FOR GENERATING SURFACE PLASMON RESONANT LIGHT - A method of manufacturing a microfluidic chip includes: irradiating, with a laser light, an area to be provided with a valley for storing a fluid on a surface of a substrate so as to form a modified region having a periodic pattern formed in a self-organizing manner in a light-collecting area of the laser light, the laser light having a pulse width for which the pulse duration is on the order of picoseconds or less; carrying out an etching treatment on the substrate in which the modified region is formed, removing at least some of the modified portion so as to provide the valley, and forming a periodic structure having a plurality of groove portions along one direction which have a surface profile based on the periodic pattern on at least a bottom surface of the valley; and forming a metal layer that covers the periodic structure of the bottom surface.06-06-2013
313312000 WITH CASING OF JACKET FOR ENVELOPE 4
20090184621Plasma Display Apparatus and Method of Manufacturing Same - A plasma display apparatus and a method of manufacturing a plasma display apparatus are provided. According to the invention, the accuracy of alignment of the plasma display apparatus is improved. A plasma display apparatus according to one embodiment of the present invention comprises a plasma display panel for producing images and a chassis to which the plasma display panel is attached. The plasma display panel comprises at least one aligning mark and is attached to a first surface of the chassis. The chassis comprises at least one aligning hole corresponding in position to the position of the aligning mark on the plasma display panel. The chassis comprises aluminum and an anti-reflective material. The anti-reflective material is present in the chassis in an amount ranging from about 12 to about 26 parts by weight per 100 parts by weight aluminum.07-23-2009
20090267480HIGH-PRESSURE DISCHARGE LAMP AND LIGHTING EQUIPMENT - A high-pressure discharge lamp includes a luminous tube, a translucent protective tube disposed to cover the luminous tube, and a light-cutting layer formed on an outer or inner surface of the protective Lube and includes, as a main component, metal oxide particles which absorb light having a wavelength no greater than 600 nm and allow light having a wavelength of greater than 600 nm to permeate, the light-cutting layer having optical properties that a cut ratio of light having a wavelength of 450 nm is confined to 20-50%.10-29-2009
20110175516BULB SHELL FOR LED LIGHT BULBS - A bulb shell includes a transparent shell base having an opening, a largest outer diameter and a light projection surface defined by a critical boundary on the shell base, and a coating on the shell base in a region between the opening and the critical boundary to increase brightness of the light projection surface. The critical boundary lies between a first position where the largest outer diameter is located and a second position distant from the first position by 33% of the dimension of the largest outer diameter in a direction away from the opening. The coating will significantly increase the brightness of the light projection surface when the bulb shell is used in a LED light bulb.07-21-2011
20110181172Fold and Spiral CFL Bulb Safety Cups, Diffusion Covers and Shade Assemblies - Screw-on or slip-on covers, in the form of transparent or translucent plastic sleeves for CFLs functioning as diffusers and cups for handling bulbs during installation, removal and as a safety receptacle for mercury-contaminated broken bulbs. The covers have interior surfaces contoured to the various sizes of CFL tube configurations, spiral or axially folded tubes, so that they are securely retained when screwed or slipped onto the tubes. The inventive covers may be used in any orientation, open end up, down or horizontal, so that they are equally useful for upright CFLs in lamps, horizontally oriented CFLs screwed into wall sockets, or downwardly oriented or angled CFLs screwed into horizontal or sloped ceiling fixtures. The inventive covers function as light diffusers and hide the tubes in more pleasing external shapes. Attractive sleeve colors, designs and surface textures are disclosed. Shades and shade frames may be secured to the inventive CFL covers.07-28-2011
313552000 HAVING PRESSURE CONTROL OF GAS OR VAPOR 3
20090140651Discharge Light Source06-04-2009
20100134000LOW-PRESSURE MERCURY VAPOR DISCHARGE LAMP WITH AMALGAM CAPSULE HAVING AMALGAM CHAMBER - An amalgam capsule (06-03-2010
20140049157DISPLAY DEVICE AND MANUFACTURING METHOD THEREOF - Instead of sealing together the upper and lower panels of a display device with only a solid-filled sealing material, a vacuum region is provided in suction-force-applying communication with at least one of the panels and anchored to the other so as to pull the panels together due to pressure difference with and ambient atmosphere. The display device includes: a vacuum region defined by a pair of spaced apart, resilient and gas impermeable support barriers formed to integrally extend from at least one of the upper and lower panels of the display device and having the other end in vacuum region closing contact with the other display panel where the vacuum region is positioned in a peripheral area of the display device.02-20-2014
313054000 WITH RADIOACTIVE MATERIAL 3
20080272680Alpha Fusion Electrical Energy Valve - Alpha particles are directed and focused onto a delta-ray cathode target, where an alpha fusion reaction is generated. Delta radiation or high-energy secondary electrons are generated from the said alpha reaction. The cathode also becomes thermally active generating thermionic electrons. The electrons flow in the direction of an anode that absorbs their energy, generating electrical current in one direction, known in the electrical field as direct current.11-06-2008
20130009532High Intensity Discharge Lamp with Ignition Aid - A high intensity discharge lamp includes an electrically insulating arc tube. A sealed shroud encloses the arc tube. An electrically conductive frame member is disposed inside the shroud and is electrically connected to an electrical conductor that extends in the arc tube. Electrically conductive foil is fastened to the frame member and forms a closed loop that encircles a leg of the arc tube by an angle in a range of at least 270 degrees to 360 degrees. The foil can be connected to the frame member and to itself. A distance from an outer surface of a flange of the arc tube leg to a proximal edge of the foil can range from 1.5 to 8 mm. A width of the foil can range from 1 mm to 4 mm.01-10-2013
20130093310HIGH INTENSITY DISCHARGE LAMP WITH COILED WIRE IGNITION AID - This disclosure features a high intensity discharge lamp comprising an electrically insulating arc tube comprised of light transmissive material. Electrical conductors or electrodes are each spaced apart from each other inside the arc tube. A shroud comprised of light transmissive material encloses the arc tube. An electrically conductive frame member is disposed in an interior of the shroud and is electrically connected to one of the electrical conductors. An ignition aid is electrically attached to the frame member and comprises a coil of electrically conductive wire that is disposed around the arc tube.04-18-2013
313230000 DISCHARGE DEVICE WITH POSITIVE ION EMITTER 2
20110115362ION-GENERATING DEVICE AND ELECTRICAL APPARATUS - An ion-generating device includes a discharge electrode and an induction electrode. The discharge electrode has a needle-like tip. The induction electrode has a circular through hole. The tip of the discharge electrode penetrates the through hole of the induction electrode, and protrudes upward with respect to an upper surface of the induction electrode. It is thereby possible to obtain an ion-generating device capable of improving ion emission efficiency, and an electrical apparatus provided with the ion-generating device05-19-2011
20160104595ION GENERATION APPARATUS AND ELECTRIC EQUIPMENT INCLUDING THE SAME - A housing, a substrate accommodated in the housing, a needle electrode for generating ions through discharging, which is held by the substrate such that a tip end portion protrudes outside the housing, an insulating sealing portion insulating and sealing the substrate in the housing, and an electrode protection portion for protecting the needle electrode outside the housing are included. The housing is provided with an opening portion through which a side of the tip end portion of the needle electrode is inserted and which is sealed with the insulating sealing portion. The electrode protection portion has a first protection portion and a second protection portion which are provided to protrude from the housing relative to the tip end portion of the needle electrode and opposed to each other at a distance from each other on opposing sides of the needle electrode.04-14-2016
313545000 HAVING VALVE WITH GETTER, GAS/VAPOR GENERATING MATERIAL OR PRESSURE CONTROL MEANS 2
20090212700High brightness excimer lamp - A high brightness excimer light source has an elongated tube containing an excimer-forming gas and electrodes for exciting the gas to form a plasma, and thus create excimers such as a rare gas halogen excimer or a rare gas excimer. Light emitted from the excimer propagating axially along the tube passes out of the tube through an exit device such as a lens or optical fiber at one or both ends of the tube.08-27-2009
20140265823Method and Apparatus for Monitoring a Charged Particle Beam - An ionization chamber with spatial distribution electrode for monitor hadron beam currents used for therapeutic treatment. Ionization chamber comprises humidity control, environmental sensing and real-time correction thereof. A flexible hermetic seal provide for ambient pressure equalization. X-Y electrode planes measure Gaussian distribution of incident particle beam. Methods described herein are suitable to fabricate highly accurate, low scattering electrodes with high spatial resolutions.09-18-2014
313237000 WITH ELECTRODE REPLACEMENT MEANS OR DEMOUNTABLE 2
20090184620ELECTRODE CAP FOR ELECTRICAL DISCHARGE REACTOR - An electrode cap having a horseshoe-shaped conductor clip that has an opening at a closed end for receiving an electrode, the conductor clip fitted over a tube crimp; a cylindrical base cap having an elongated bump at one end of the base cap parallel to the axis of the base cap; and a cylindrical top cap closed on one end, having an inside diameter larger than the outside diameter of the base cap; and a spring for pressing a plate against the base cap.07-23-2009
20140167597CATHODE INTERFACE FOR A PLASMA GUN AND METHOD OF MAKING AND USING THE SAME - Interchangeable or standard electrode interface for a thermal spray plasma gun includes an interchangeable electrode having a first connecting section and a first annular coupling surface. A second connecting section is arranged in a plasma gun and includes a second annular coupling surface. An annular seal is spaced or axially spaced from an annular interface formed between the first and second annular coupling surfaces.06-19-2014
313163000 LIQUID ELECTRODE DISCHARGE DEVICES 2
20120133265LIQUID ANODE RADIATION SOURCE - The present disclosure relates to a liquid anode radiation source (05-31-2012
20160189906LIQUID FILAMENT FOR INCANDESCENT LIGHTS - A filament for a light bulb includes a tube and a filament material within the tube, wherein the filament material is configured to be in a liquid state while the light bulb is in use.06-30-2016
313146000 WITH MOVABLE ELECTRODE OR SHIELD 1
20090121604ELECTRODE AND ARRANGEMENT WITH MOVABLE SHIELD - The present invention comprises an electrode arrangement for a coating device with a stationary first electrode (05-14-2009
313007000 WITH EVACUATING PUMP 1
20150349035ELECTRONIC APPARATUS HAVING AN OXYGEN ION PUMP - The present invention relates to an electronic apparatus which contains an electronically active material and an oxygen ion pump for removing oxygen from the apparatus. Furthermore, the present invention also relates to the use of an oxygen ion pump for removing oxygen from an electronic apparatus.12-03-2015
313513000 WITH CHARACTER DISPLAY (E.G., DIGITS OR LETTERS) 1
20100213836Character Display Module - A character display module comprises a character organic light emitting diode panel, a printed circuit which is electrically connected to the character organic light emitting diode panel, a drive controller which is disposed on the printed circuit board to drive and control the character organic light emitting diode panel, and a frame which is used to position the character organic light emitting diode panel on the printed circuit board. Therefore, such an arrangement provides a lighter, thinner, high quality, cost-saving and energy-saving character display module.08-26-2010
313048000 WITH HANDLE 1
20150357163Plasma Treatment Device Comprising a Roller Mounted Rotatably in a Handle Housing - A plasma treatment device for treating a surface with a dielectrically impeded plasma field which is generated between an electrode (12-10-2015
313232000 ELECTRODES IMMERSED IN LIQUID 1
20130113359FIELD EMISSION DEVICES INCLUDING NANOTUBES OR OTHER NANOSCALE ARTICLES - The present invention provides devices comprising an assembly of carbon nanotubes, and related methods. In some cases, the carbon nanotubes may have enhanced alignment. Devices of the invention may comprise features and/or components which may enhance the emission of electrons and may lower the operating voltage of the devices. Using methods described herein, carbon nanotube assemblies may be manufactured rapidly, at low cost, and over a large surface area. Such devices may be useful in display applications such as field emission devices, or other applications requiring high image quality, low power consumption, and stability over a wide to temperature range.05-09-2013
313106000 SECONDARY EMISSION PREVENTION 1
20130002119FIELD EMISSION PANEL - A field emission panel is provided. The field emission panel includes a first substrate and a second substrate, a sealing member and a plurality of spaces which are disposed between the first substrate and the second substrate, a plurality of concave portions which are formed on a surface of the first substrate, a plurality of cathode electrodes which are disposed within each of the plurality of concave portions, a plurality of field emission materials which are disposed on each of the cathode electrodes, a plurality of gate electrodes which are fixed to areas of the surface of the first substrate which separate the concave portions of the first substrate with a gap therebetween, a light emission unit which is disposed on the second substrate, and a charging prevention resistance unit which is disposed on the first substrate, on a gap between a pair of gate electrodes.01-03-2013
313009000 FILAMENT AND SEPARATE INCANDESCENT BODY 1
20090021131Lamp with high efficiency linear polarized light output - What is described is are two techniques to improve the efficiency of a lamp, one being energy recycling and the second being linear polarization recycling both of which can be implemented singularly or together in an incandescent or gas discharge lamp outputting an improved illumination and/or linear polarized illumination at a improved efficiency; the linear polarized lamp being desirable for use in an LCD projector and other applications requiring linear polarized illumination. The lamp utilizes one or more wasted energy recycling techniques. One technique is use of reflective polarization filter over the exit aperture that reflects wasted polarization back to the surface of the reflector wherein the polarization is partially randomized by the dielectric reflective coating on the lamp reflector for recycling and redirecting the polarized radiation back to the exit aperture; another technique is to place a candoluminescent material in proximity of the filament, housed in a transparent envelope, to intercept the wasted radiation and be heated to output desirable illumination via candoluminescence.01-22-2009

Patent applications in class Electric lamp and discharge devices

Patent applications in all subclasses Electric lamp and discharge devices

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