Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4848207 | Level adjuster for a musical instrument | — | 1989-07-18 |
TK
Takayuki Kawai
Overall (1989): #53,279 of 140,708Top 40%
1
Patents 1989