Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4816624 | Multiphase gas expansion circuit breaker for gas-insulated metalclad cell | Gerard Perrissin, Lucien Marsala, Jean-Paul Robert | 1989-03-28 |
| 4697055 | Arc extinction device for gas insulation electrical switchgear | Jean-Jacques Walter, Daniel James Petit, Jean Amalric, Georges Bernard | 1987-09-29 |