Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4580463 | Winch for various shutters used for evacuation of smoke and ventilation purposes | Claude Le Metais | 1986-04-08 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4580463 | Winch for various shutters used for evacuation of smoke and ventilation purposes | Claude Le Metais | 1986-04-08 |