Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6050115 | Locking device | Frank Schroter, Alfred Dinkelborg | 2000-04-18 |
| 5896763 | Locking device with a leaf-restraining device | Alfred Dinkelborg | 1999-04-27 |
| 5265920 | Drive rod lock | Renate Berning | 1993-11-30 |
| 5197771 | Locking system | Renate Berning | 1993-03-30 |
| 4962653 | Drive rod lock | — | 1990-10-16 |