Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5214710 | Permanent magnet system with associated coil arrangement | Edmund Schiessle | 1993-05-25 |
| 5143169 | Loudspeaker diaphragm provided with a rear load | Edmund Schiessle | 1992-09-01 |
| 4868882 | Loudspeaker | Edmund Schiessle | 1989-09-19 |
| 4399705 | Acceleration detector | Gunter Weiger, Paul Schwerdt | 1983-08-23 |