Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5155764 | Telephone set with on-hook line seizure | Claude Malaurie, Pierre Becker, Jean-Marc Duvernay | 1992-10-13 |
| 4292479 | Separation and balance device for telephone exchanges | Alain Nicolas, Jean-Pierre Poirier | 1981-09-29 |