Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5479521 | Piezoceramic capsule for telephone instruments | Antonio D'Avolio | 1995-12-26 |
| 5195142 | Piezoelectric transducer | Antonio D'Avolio | 1993-03-16 |
| D262875 | Telephone answering device | Aldo Franchi, Severino Tessarollo | 1982-02-02 |