Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877677 | Wear-protected device | Makoto Kitabatake, Osamu Yamazaki | 1989-10-31 |
KH
Kumiko Hirochi
Overall (1989): #85,612 of 140,708Top 65%
1
Patents 1989