Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864246 | Mobile automatic volume control apparatus | Masayuki Kato, Shinjiro Kato | 1989-09-05 |
FT
Fumio Tamura
Overall (1989): #113,496 of 140,708Top 85%
1
Patents 1989