Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6031924 | Fixed mounting loudspeaker with removable chassis | — | 2000-02-29 |
| 5287412 | Arrangement for reproducing bass tones in a vehicle | Jorg Prokisch, Rudiger Fleischer, Edgar Kirk | 1994-02-15 |