Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4467430 | Railway track circuit | Andre Even, Christian Fortier, Dominique Hedoin, Serge Le Guen, Dominique Raucourt | 1984-08-21 |
| 4349170 | Safety coding process for track circuits | Claude D. Bilet, Dominque A. Hedoin | 1982-09-14 |