Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5329468 | Actual operating time indicator | Kazuhito Tsukahara | 1994-07-12 |
| 4792734 | Stepless speed change electric chain block | — | 1988-12-20 |
| 4789135 | Operating device for electric hoist | — | 1988-12-06 |