Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4495688 | Prefabricated concrete panel with truss | François Longpré, Pierre Longpre | 1985-01-29 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4495688 | Prefabricated concrete panel with truss | François Longpré, Pierre Longpre | 1985-01-29 |