Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867033 | Idiophone having a resonant chamber | Isao Shimoda | 1989-09-19 |
SF
Shigemitsu Fujioka
Overall (1989): #58,024 of 140,708Top 45%
1
Patents 1989