Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4740115 | Broach | Gunther Hertel | 1988-04-26 |
| 4729700 | Drive unit for rotary tools | Gunther Hertel | 1988-03-08 |
| 4632614 | Composite tool unit for chip-removing machining | Gerhard Rall, Gunther Hertel, Hermann L. Kastner | 1986-12-30 |