Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4681301 | Arrangement for lifting and lowering or for pulling loads | — | 1987-07-21 |
| 4345741 | Driving pulley mechanism | Rodolphe F. Tanson | 1982-08-24 |
| 4193311 | Driving pulley mechanism | Rodolphe F. Tanson | 1980-03-18 |