Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873905 | Automatic player piano | Kazuo Murakami, Yasutoshi Kaneko | 1989-10-17 |
TT
Takasi Tamaki
Overall (1989): #52,210 of 140,708Top 40%
1
Patents 1989