Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4817160 | Amplifier with automatic gain control | Stephanus H. De Koning | 1989-03-28 |
| 4783819 | Automatically controlled amplifier arrangement | Stephanus H. De Koning | 1988-11-08 |