Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6676348 | Expansion anchor which can be fixed to a panel-type building material | — | 2004-01-13 |
| 5234294 | Drilling device for producing drilled holes with undercuts | Burkhard Mayer | 1993-08-10 |