Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5127776 | Tap with relief | — | 1992-07-07 |
| 5112168 | Tap with tapered thread | — | 1992-05-12 |
| 4801227 | Clamping device for workpieces or tools with a high concentricity accuracy | Volker Wenzel | 1989-01-31 |
| 4725064 | Chuck apparatus for workpieces or tools having a clamping sleeve of variable size | Volker Wenzel | 1988-02-16 |