Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7207541 | Locking device with several locking pins | Ernst-Reiner Frohnhaus | 2007-04-24 |
| 6764054 | Locking device with grooved locking pins | Burkhard Becker, Ernst-Reiner Frohnhaus, Ulrich Karthaus | 2004-07-20 |