Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871254 | Method and device for detecting propagation time variations in a ring interferometer and application thereof to wave length control | Herve Lefevre | 1989-10-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871254 | Method and device for detecting propagation time variations in a ring interferometer and application thereof to wave length control | Herve Lefevre | 1989-10-03 |