Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867733 | Chain drive system | Yoshinori Yamanoi | 1989-09-19 |
HM
Hiroaki Makino
Overall (1989): #104,895 of 140,708Top 75%
1
Patents 1989