Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4853013 | Filtering structure for a vent device and device including said structure | Michel Rio, Herve Louis, Georges Buffet, Marcel Joly, Jean-Francois Goudard +2 more | 1989-08-01 |