Issued Patents 2017
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9700981 | Method of cutting or machining internal gear teeth, motion-changing device, and machine tool | Domenico Petrallia, Oswald Witschi | 2017-07-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9700981 | Method of cutting or machining internal gear teeth, motion-changing device, and machine tool | Domenico Petrallia, Oswald Witschi | 2017-07-11 |