Issued Patents All Time
Showing 51–54 of 54 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4195384 | Self-resetting, cable operated translating drive link | — | 1980-04-01 |
| 4185657 | Economy, angle-blade damper kit | — | 1980-01-29 |
| 4185658 | Rotating blade damper | — | 1980-01-29 |
| 4183129 | Method of forming a smoke, fire and air control damper with stamped blade hinge | — | 1980-01-15 |