Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9784014 | Lock-key system | Peter Meissner | 2017-10-10 |
| 8456277 | Locking cylinder and closing method | Normann Ketzler, Hermann Roeser, Andreas Steinkamp | 2013-06-04 |
| 5153394 | Tilt-actuated switch | Manfred Abendroth, Herbert Keller | 1992-10-06 |