Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6494296 | Device for signaling movement of an elevator car during the evacuation of elevator passengers | Urs Lindegger, Andreas Dorsch | 2002-12-17 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6494296 | Device for signaling movement of an elevator car during the evacuation of elevator passengers | Urs Lindegger, Andreas Dorsch | 2002-12-17 |