Renfro; James G.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Renfro; James G..The latest application filed is for "universal floor mounted pipe handling machine".
- Renfro; James G. - Austin TX
- Renfro; James G. - Spring TX
- Renfro; James G. - Round Rock TX
| Patent | Date |
|---|---|
| Universal floor mounted pipe handling machine Grant 4,715,761 - Berry , et al. December 29, 1 | 1987-12-29 |
| Torque wrench Grant 4,696,206 - Renfro September 29, 1 | 1987-09-29 |
| Power tong and jaw apparatus Grant 4,572,036 - Renfro February 25, 1 | 1986-02-25 |
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