Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5191704 | Insulating industrial door manufacturing method | — | 1993-03-09 |
| 5184423 | Insulating industrial door and door manufacturing method | — | 1993-02-09 |
| 5146971 | Strip door suspension system | — | 1992-09-15 |
| 5025531 | Gravity swing door hinge | — | 1991-06-25 |
| 4658544 | Door assembly | — | 1987-04-21 |