Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D300041 | Electronic whiteboard and photocopier | Shigeru Kurozumi | 1989-02-28 |
HS
Harumi Sakamoto
Overall (1989): #107,820 of 140,708Top 80%
1
Patents 1989