Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4924742 | Mechanical keyboard instrument with pedal mechanisms | Kinya Nozaki, Hajime Hayashida, Toshiaki Sakai | 1990-05-15 |
MN
Motoichi Numata
Overall (All Time): #3,902,658 of 4,157,543Top 95%
1
Patents All Time