Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4869214 | Valve operating mechanism for internal combustion engine | Kazuo Inoue, Kenichi Nagahiro, Masaaki Katoh | 1989-09-26 |
YA
Yoshio Ajiki
Overall (1989): #41,492 of 140,708Top 30%
1
Patents 1989