Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4844140 | Releasable drive assembly | Richard E. Jones | 1989-07-04 |
| 4782887 | Rolling door drive assembly | Richard E. Jones | 1988-11-08 |
| 4257285 | Roller door operating mechanism | Martin H. Whitehouse | 1981-03-24 |