Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879843 | Dual purpose door system | Atsushi Hamamoto | 1989-11-14 |
MI
Mikio Ichiki
Overall (1989): #139,356 of 140,708Top 100%
1
Patents 1989