Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4861941 | Shielding device | Kazuhiko Kubo, Akira Usui, Hiroyuki Nagai | 1989-08-29 |
SS
Susumu Saitou
Overall (1989): #54,222 of 140,708Top 40%
1
Patents 1989