Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4813385 | General-purpose internal combustion engine | Mutsumi Terasawa, Mitsuo Sasagase | 1989-03-21 |
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Yoshinobu Yamaguchi
Toyo Roki Seizo Kabushiki Kaisha: 1 patents #1 of 3Top 35%
Overall (1989): #39,997 of 140,708Top 30%
1
Patents 1989