Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4408451 | Rotating joint for an exhaust pipe of an automobile vehicle | Claude Lesueur | 1983-10-11 |
| 4190031 | Devices for re-cycling the exhaust gases of an internal combustion engine | Michel Achard | 1980-02-26 |