Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4550430 | Sound reproducing system utilizing motional feedback and an improved integrated magnetic structure | — | 1985-10-29 |
| 4369687 | Pitch sensor | — | 1983-01-25 |
| 4276443 | Sound reproducing system utilizing motional feedback and velocity-frequency equalization | — | 1981-06-30 |
| 4256923 | Sound reproducing system utilizing motional feedback and integrated magnetic structure | — | 1981-03-17 |