Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D302163 | Drilling, tapping and milling machine | Yasuyo Isaji, Noboru Hirose, Takashi Nozu | 1989-07-11 |
| D302164 | Drilling, tapping and milling machine | Yasuyo Isaji, Noboru Hirose, Takashi Nozu | 1989-07-11 |
| D302165 | Machine for cutting workpieces utilizing electric discharge | Yasuyo Isaji, Masao Shimomura | 1989-07-11 |