Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4747144 | Amplifier with automatic inhibition of acoustic feedback | Benjamin Lopes Cardozo | 1988-05-24 |
| 4525856 | Amplifier arrangement for acoustic signals, provided with means for suppressing (undersired) spurious signals | Benjamin Lopes Cardozo | 1985-06-25 |