Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5706358 | Magnetic audio transducer with hinged armature | — | 1998-01-06 |
| 5287413 | Dual voice coil sound reproducing device | — | 1994-02-15 |
| 5058173 | Combination inertia type audio transducer and loudspeaker | — | 1991-10-15 |
| 5031501 | Method for attaching an audio transducer to a string musical instrument | — | 1991-07-16 |
| 4718098 | Multi-diaphragm artificial reverberation device | — | 1988-01-05 |