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OBERLIKON LEYBOLD VACUUM GMBH
| OBERLIKON LEYBOLD VACUUM GMBH Patent applications | ||
| Patent application number | Title | Published |
|---|---|---|
| 20110135506 | MULTI-STAGE VACUUM PUMP - A multi-stage vacuum pump includes a plurality of rotor elements ( | 06-09-2011 |
| 20090140495 | Shaft Seal - A shaft seal which is in particular suitable for vacuum pumps, such as screw pumps, comprises an inner sealing ring ( | 06-04-2009 |