Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6553620 | Balancing spring system for sliding window sash | Guy Guillemet, Daniel Varin | 2003-04-29 |
| 6332288 | Window sash pivot assembly | Guy Guillemet, Daniel Varin | 2001-12-25 |
| 5655342 | Shimming device for level adjustment and anchoring of window frame in a wall opening | Guy Guillemet, Martin Tremblay | 1997-08-12 |