Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870269 | Optical-fiber detection device which involves testing for good performance | Francois X. Desforges | 1989-09-26 |
| 4843233 | Device for detecting vibrations including a multimode optical fiber as sensitive element | — | 1989-06-27 |