Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5511839 | Door opener with a lockable, pivotable latch | John S. Rutherford, Gerhard Gonser | 1996-04-30 |
| 5439262 | Locking/release mechanism for a pivot bolt of a closed-circuit door opener | Augustin Toma | 1995-08-08 |