Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4843946 | Filament-wound venturi | Raymond Langlois, William J. Robertson | 1989-07-04 |
| 4718323 | Thermo-electronic system to correct for thermal deformation of a restrained plate | Jacques Dubois, Raymond Carbonneau, Gedeon Drouin | 1988-01-12 |
| 4646615 | Carbon fibre gun barrel | Raymond Langlois, William J. Robertson | 1987-03-03 |