Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10016826 | Method for cutting or machining gear teeth and gear-cutting machine | Johannes Brogni, Oswald Witschi | 2018-07-10 |
| 9700981 | Method of cutting or machining internal gear teeth, motion-changing device, and machine tool | Johannes Brogni, Oswald Witschi | 2017-07-11 |