Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5634295 | Revolving door | — | 1997-06-03 |
| 5386885 | Electro-mechanical pivot wing drive for pivoting wings of doors or the like | Hansrudolf Bisang, Hans-Ulrich Minder, Daniel Burgi | 1995-02-07 |
| 4438594 | Balanced sliding door structure | — | 1984-03-27 |