Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4848038 | Method for grinding a non-circular workpiece | Toshio Maruyama, Hiroshi Nakano | 1989-07-18 |
| 4815000 | Numerical controller with operation halting function for data revision | Takao Yoneda, Tadashi Yamauchi | 1989-03-21 |