Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5209153 | Portable hydraulically operated device incorporating automatic drain valve | Masaharu Araki | 1993-05-11 |
| 5125324 | Portable hydraulically operated device incorporating automatic drain valve | Masaharu Araki | 1992-06-30 |