Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4554546 | Receiver for a sounder permitting the detection and measurement of phonomena linked with the earths environment | Alain Le Roy | 1985-11-19 |
| 4356487 | Sounding apparatus | — | 1982-10-26 |