Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5760501 | Compression driver motor structure | Vern Bertelsman, Joseph A. Ferrante, Bruce Marlin | 1998-06-02 |
| 4673149 | Loudspeaker mounting system | Frederick R. Leu | 1987-06-16 |
| 4484658 | Speaker support assembly | — | 1984-11-27 |