Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5095537 | Automatic monitoring system in an explosive environment of a direct current source by storage batteries | Robert Jean, Serge Laffont, Michel Prunier, Philippe Trichet | 1992-03-10 |
| 4314369 | Digital coding process for recording sound channels with a television signal and apparatus realizing this process | Rene Romeas | 1982-02-02 |