Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4574650 | Force limiting gear reducer for lifting pinion of self-elevating platform | Francois Durand | 1986-03-11 |
| 4480491 | Force limiting gear reducer for lifting pinion of self-elevating platform | Francois Durand | 1984-11-06 |
| 4437792 | Vertically moving platform supported on legs | Francois Durand | 1984-03-20 |