Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4817160 | Amplifier with automatic gain control | Stephanus H. De Koning | 1989-03-28 |
AV
Alexander Verwijmeren
Overall (1989): #132,690 of 140,708Top 95%
1
Patents 1989