Drager; Barry
Patent Applications and Registrations
Patent applications and USPTO patent grants for Drager; Barry.The latest application filed is for "railcar man-way cover lift-assist system".
- Drager; Barry - Houston TX
| Patent | Date |
|---|---|
| Railcar man-way cover lift-assist system Grant 7,770,526 - Drager August 10, 2 | 2010-08-10 |
| Railcar Man-Way Cover Lift-Assist System App 20100107926 - Drager; Barry | 2010-05-06 |
| Coil spring having non-circular coils App 20020190452 - Drager, Barry | 2002-12-19 |
| Fail safe coil spring including mounting mechanism Grant 6,260,833 - Drager July 17, 2 | 2001-07-17 |
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