Issued Patents All Time
Showing 51–58 of 58 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4794972 | Door leaf member | — | 1989-01-03 |
| 4753057 | Length of section for framing the leaf of a gate or door | — | 1988-06-28 |
| 4726247 | Gear for converting a rotational into a translational motion | — | 1988-02-23 |
| 4718472 | Sectional strip for roll-up, fold-up, and similar gates | — | 1988-01-12 |
| 4625291 | Process for monitoring a driven, movable door or the like | — | 1986-11-25 |
| 4564098 | Drive assembly for door operator | — | 1986-01-14 |
| 4480863 | Door with locking device | — | 1984-11-06 |
| 4218681 | Hand-held transmitter for transmitting different signals | — | 1980-08-19 |