Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4881365 | Assembly apparatus for truck links | Hirotomo Numakura | 1989-11-21 |
| 4869417 | Automatic build-up welding machine for track rollers | — | 1989-09-26 |
| 4805826 | Slag removing apparatus for pad-welding machine | Hirotomo Numakura, Masahiro Sakurai | 1989-02-21 |