Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864221 | Filter, phase-measuring device and method for application of said filter | Yvon Fouche, Serge Drabowitch | 1989-09-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864221 | Filter, phase-measuring device and method for application of said filter | Yvon Fouche, Serge Drabowitch | 1989-09-05 |