Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4957106 | Gas mask coupled to monolithic member with speech membrane | — | 1990-09-18 |
| D307338 | Visor | — | 1990-04-17 |
| 4841963 | Accessory for gas masks and gas masks equipped therewith | — | 1989-06-27 |