Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7303556 | Device for supplying an electro-pen with electrical energy | — | 2007-12-04 |
| 6934221 | Timepiece with a date mechanism comprising two superposed date rings | Roger Willemin, Marco Bettelini | 2005-08-23 |
| 6925032 | Timepiece with a date mechanism comprising two superposed date rings | Roger Willemin, Marco Bettelini | 2005-08-02 |