Eshelman; Robert W.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Eshelman; Robert W..The latest application filed is for "pressure transducer".
- Eshelman; Robert W. - Ann Arbor MI
| Patent | Date |
|---|---|
| Pressure transducer Grant 4,242,914 - Eshelman , et al. January 6, 1 | 1981-01-06 |
| Pressure transducer and method Grant 4,161,886 - Eshelman , et al. July 24, 1 | 1979-07-24 |
| Vacuum Bias Switch Grant 3,804,109 - Martin , et al. April 16, 1 | 1974-04-16 |
| Thermostatic Vacuum Valve Grant 3,734,403 - Eshelman , et al. May 22, 1 | 1973-05-22 |
| Crankcase Ventilation Grant 3,661,128 - Eshelman May 9, 1 | 1972-05-09 |
| Crankcase Ventilation Grant 3,646,925 - Eshelman March 7, 1 | 1972-03-07 |
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