Gerwing; Murray C.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Gerwing; Murray C..The latest application filed is for "spin wrench assembly".
- Gerwing; Murray C. - Edmonton CA
| Patent | Date |
|---|---|
| Spin Wrench Assembly App 20150167409 - Gerwing; Murray C. ; et al. | 2015-06-18 |
| Mechancial Roughneck Positioner App 20150075814 - Gerwing; Murray C. ; et al. | 2015-03-19 |
| Variable pitch fan Grant 6,942,458 - McCallum , et al. September 13, 2 | 2005-09-13 |
| Variable pitch fan App 20040067135 - McCallum, Jonathan E. ; et al. | 2004-04-08 |
| Variable pitch fan Grant 6,644,922 - McCallum , et al. November 11, 2 | 2003-11-11 |
| Variable pitch fan App 20020192078 - McCallum, Jonathan E. ; et al. | 2002-12-19 |
| Variable pitch fan Grant 6,439,850 - McCallum , et al. August 27, 2 | 2002-08-27 |
| Variable pitch fan Grant 6,113,351 - McCallum , et al. September 5, 2 | 2000-09-05 |
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