Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D302828 | Ink ribbon cassette for electronic typewriter | Yasuo Ohba | 1989-08-15 |
| D299251 | Desk-top electronic calculator | Takeshi Hasegawa, Akihiko Kobayashi | 1989-01-03 |
AE
Aiko Endo
Overall (1989): #31,750 of 140,708Top 25%
2
Patents 1989