Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873944 | Partially liquid-cooled type forced air-cooling system for internal combustion engine | — | 1989-10-17 |
| 4825816 | Engine with forced air-cooling | Tsuyoshi Nishida | 1989-05-02 |