Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D303982 | Desk-top electronic calculator | Fumiya Matsuoka | 1989-10-10 |
| D299251 | Desk-top electronic calculator | Aiko Endo, Akihiko Kobayashi | 1989-01-03 |
TH
Takeshi Hasegawa
Overall (1989): #15,133 of 140,708Top 15%
2
Patents 1989