Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D311539 | Loudspeaker enclosure | Angelo Franzini | 1990-10-23 |
| 4704729 | Single acoustic box with spatial effect for stereophonic musical reproduction systems | Angelo Franzini | 1987-11-03 |