Benham; Ralph E.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Benham; Ralph E..The latest application filed is for "electrical shock prevention system".
- Benham; Ralph E. - Orlando FL
- Benham; Ralph E. - Elsinore CA
- Benham; Ralph E. - Arcadia CA
| Patent | Date |
|---|---|
| Electrical shock prevention system Grant 6,021,033 - Benham , et al. February 1, 2 | 2000-02-01 |
| Power tool driving systems Grant 5,788,428 - Ward , et al. August 4, 1 | 1998-08-04 |
| Scoreboard for the game of darts Grant D298,922 - Hinkle December 13, 1 | 1988-12-13 |
| Ground Fault And High Current Responsive Circuit Breaker Utilizing Amplified Signals Grant 3,611,038 - Benham October 5, 1 | 1971-10-05 |
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