Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888541 | Method and apparatus for controlling stepmotor mechanical drives | — | 1989-12-19 |
| 4804910 | Traction load meter system | — | 1989-02-14 |
| 4307302 | Electronic control system | — | 1981-12-22 |
| 4195920 | Golf game projector | Goodrich B. Pratt, Anthony J. Gretzky | 1980-04-01 |