Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4815131 | Digital audio channel selection circuit | — | 1989-03-21 |
MO
Manabu Okamoto
Overall (1989): #79,485 of 140,708Top 60%
1
Patents 1989