Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7146921 | Rotationally retractable propeller | Guy Fontanille, Patrick Delalandre | 2006-12-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7146921 | Rotationally retractable propeller | Guy Fontanille, Patrick Delalandre | 2006-12-12 |