Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4703509 | Electrostatic acoustic converter with stationary electrode having a progressively increasing surface resistance | — | 1987-10-27 |
| 4383139 | Electrostatic acoustic converter | — | 1983-05-10 |
| 4346466 | Compensator for horizontal angular error of a record-player arm | — | 1982-08-24 |
| 4316280 | Compensator for the horizontal angular error of a record player arm | — | 1982-02-16 |