Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9127492 | Cable drum construction of door lift mechanism for multiple horizontal panel garage door with disproportionally heavy top portion | Raymond J. Friesen | 2015-09-08 |
| 9115523 | Double end hinge construction for multiple articulating panel sectional doors | Raymond J. Friesen | 2015-08-25 |
| 8813309 | Roller hinge constructions | Raymond J. Friesen | 2014-08-26 |