Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4825822 | Rocker arm arrangement for multi-valve internal combustion engine | Shigeo Muranaka, Shigeru Kamegaya, Yutaka Matayoshi | 1989-05-02 |
TY
Tooru Yoshimura
Overall (1989): #47,734 of 140,708Top 35%
1
Patents 1989