Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889174 | Pneumatic radial tires | Kazuo Oshima | 1989-12-26 |
SI
Shizuo Iwasaki
Overall (1989): #57,729 of 140,708Top 45%
1
Patents 1989