Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864856 | Liquid level detecting device | Koji Ichikawa, Hirofumi Ohnishi | 1989-09-12 |
NS
Norikazu Soga
Overall (1989): #72,450 of 140,708Top 55%
1
Patents 1989