Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4488238 | Selection stage of the AC signal of greater amplitude between two signals of different frequencies | Jean P. Salmon | 1984-12-11 |
| 4442988 | Information transmission device through the rails between a railway track and a vehicle assembly circulating on this track | Claude P. Theze | 1984-04-17 |