Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5690189 | Apparatus and method for locking and unlocking the door of an elevator car | — | 1997-11-25 |
| 5678660 | Overhead supporting beam for an elevator door and a door mechanism arrangement | Gerhard Karner, Franz Mittermayer | 1997-10-21 |
| 5630483 | Procedure and apparatus for triggering the safety gear of an elevator | — | 1997-05-20 |