Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5390444 | Barrier device for controlling a passage for pedestrians, the device being of the three-legged turnstile type | Marcel Simonin | 1995-02-21 |
| 4640047 | Two-way pedestrian access control system | Marcel Simonin, Alain Carron | 1987-02-03 |