Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4824454 | Device for liquefying a gas | Hitoshi Kondo | 1989-04-25 |
KH
Koichi Hata
Overall (1989): #86,399 of 140,708Top 65%
1
Patents 1989