Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4558187 | Digital echo-cancellation method and circuit arrangement | Maurizio Copperi | 1985-12-10 |
| 4352182 | Method of and device for testing the quality of digital speech-transmission equipment | Carlo Scagliola | 1982-09-28 |