Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4491397 | Sighting heads for periscope installations, particularly for submarines | Rene Barthelat | 1985-01-01 |
| 4447129 | Periscopic installations with multi sighting heads for submarines | Rene Barthelat | 1984-05-08 |
| 4276698 | Machines for measuring the dimensions of workparts | Henri Judet | 1981-07-07 |