Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886135 | Engine cooling structure for agricultural tractor | Tadashi Nakamura, Eiichi Ishida | 1989-12-12 |
| 4849132 | Surfactant composition having improved functions | Eiji Nakai, Akira Noike | 1989-07-18 |