Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4328954 | Winch with compact, high efficiency and high ratio gearing suitable for free fall | — | 1982-05-11 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4328954 | Winch with compact, high efficiency and high ratio gearing suitable for free fall | — | 1982-05-11 |