Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5630412 | Protective equipment for the head comprising a breathing mask and an optical screen | Frédéric Berthet | 1997-05-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5630412 | Protective equipment for the head comprising a breathing mask and an optical screen | Frédéric Berthet | 1997-05-20 |