Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5953408 | Telephone including an electromechanical transducer, method of adapting the frequency response of such a transducer and method of coding a melody | Xavier Blanvillain, Philippe Thauvin, Hean-Michel Simon | 1999-09-14 |