Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5259287 | Upright piano equipped with coupling units for horizontally supporting key bed | Takane Sato, Hideo Yamashita | 1993-11-09 |
HM
Hisao Mori
Overall (All Time): #3,836,893 of 4,157,543Top 95%
1
Patents All Time