Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4637692 | Observation apparatus | Michel Saint-Sevin, Patrick Chabanier | 1987-01-20 |
| 4568153 | Binocular telescope | — | 1986-02-04 |
| 4487503 | Refractometer using the limiting angle method | Benoit Grandjacques, Jacques Moirez, Michel Saint-Sevin, Michel Blot | 1984-12-11 |
| 4397530 | Objective with several fields | — | 1983-08-09 |