Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6643877 | Tool set | Klaus Amtenbrink, Axel Fach, Martin Strauch, Michael Abel | 2003-11-11 |
| 6345560 | Clamping chuck for bits | Martin Strauch, Andre Muller, Werner Tretbar | 2002-02-12 |
| 6311989 | Chuck for screwdriver inserts | — | 2001-11-06 |
| D415180 | Bit holder | — | 1999-10-12 |