Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5685047 | Apparatus for attaching working elements | Robert Demuth, Werner Hirschle, Lars Weisigk | 1997-11-11 |
| 5471710 | Apparatus for attaching working elements | Robert Demuth, Werner Hirschle, Lars Weisigk | 1995-12-05 |