Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D334025 | Paper clip | — | 1993-03-16 |
| 5063640 | Endless filament paper clip | — | 1991-11-12 |
| 4867279 | Low-profile railway car retarder | Bennie M. Gray, Harold L. Shumaker | 1989-09-19 |
| 4696223 | Pneumatic pressure actuator | Bennie M. Gray, Harold L. Shumaker | 1987-09-29 |
| 4255744 | Highway crossing bell apparatus | — | 1981-03-10 |