Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6634440 | Tool for the removal of a drill core | Manfred Hartmann | 2003-10-21 |
| 5975399 | Driving apparatus with magazine for fastening elements | Kurt Oehri, Harald Geiger | 1999-11-02 |