Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4846307 | Separate lubricating system of two cycle engine | Sosuke Kinouchi | 1989-07-11 |
YS
Yukikazu Sumitomo
Overall (1989): #39,314 of 140,708Top 30%
1
Patents 1989