Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870903 | Photopyrotechnical detonation device and photopyrotechnical chain using this device | Claude Carel | 1989-10-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870903 | Photopyrotechnical detonation device and photopyrotechnical chain using this device | Claude Carel | 1989-10-03 |