Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4597376 | Heat recovery hood | Denis Gravier, Jean-Claude Gravier | 1986-07-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4597376 | Heat recovery hood | Denis Gravier, Jean-Claude Gravier | 1986-07-01 |