Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D302440 | Copying machine | Mikio Kosako, Ritsuko Makihara | 1989-07-25 |
YT
Yoichi Tatsuta
Overall (1989): #40,132 of 140,708Top 30%
1
Patents 1989