Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5642752 | Controllable constant flow regulating lift valve | Hiroshi Yokota, Shingo Yokota | 1997-07-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5642752 | Controllable constant flow regulating lift valve | Hiroshi Yokota, Shingo Yokota | 1997-07-01 |