Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4829945 | Exhaust timing control device for two-cycle engines | Hitoshi Yamamoto, Kazumi Shibata | 1989-05-16 |
MT
Masayuki Toriyama
Overall (1989): #78,357 of 140,708Top 60%
1
Patents 1989