Burckhardt Compression AG
Burckhardt Compression AG Patent applications | ||
Patent application number | Title | Published |
---|---|---|
20130307220 | OIL SCRAPER RING - The oil control ring ( | 11-21-2013 |
20090121440 | Dry-running piston rod sealing arrangement, and method for sealing a piston rod using one such arrangement - The invention relates to a dry-running piston rod sealing arrangement ( | 05-14-2009 |