Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4858651 | Control valve for construction equipment | Hideshi Koiwai | 1989-08-22 |
| 4836245 | Control valve | Yoneaki Takahashi | 1989-06-06 |
| 4830050 | Fluid control valve | — | 1989-05-16 |
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4858651 | Control valve for construction equipment | Hideshi Koiwai | 1989-08-22 |
| 4836245 | Control valve | Yoneaki Takahashi | 1989-06-06 |
| 4830050 | Fluid control valve | — | 1989-05-16 |