Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4829869 | Tone control apparatus for electronic musical instrument | Kosei Terada | 1989-05-16 |
NK
Naota Katada
Overall (1989): #74,076 of 140,708Top 55%
1
Patents 1989