Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870972 | Multiple-frequency acoustic transducer, especially for medical imaging | Jean-Francois Gelly | 1989-10-03 |
| 4794929 | Echography probe and echograph fitted, with a probe of this type | — | 1989-01-03 |