Geometrical instruments
Patent class list (only not empty are listed)
Deeper subclasses:
Class / Patent application number | Description | Number of patent applications / Date published |
---|---|---|
033501000 | GAUGE | 909 |
033700000 | DISTANCE MEASURING | 385 |
033227000 | STRAIGHT-LINE LIGHT RAY TYPE | 356 |
033300000 | INDICATOR OF DIRECTION OF FORCE TRAVERSING NATURAL MEDIA | 306 |
033403000 | STRAIGHTEDGE TYPE | 163 |
033180100 | SCRIBER | 60 |
033001000 | MISCELLANEOUS | 47 |
033002000 | APPAREL | 21 |