Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4757393 | Multiple variable rate audio message playback | Wayne R. Dakin | 1988-07-12 |
| 4463389 | System for recording and playing back continuous-play and stop-motion signals | — | 1984-07-31 |
| 4450488 | System for recording continuous-play and stop-motion signal | — | 1984-05-22 |
| 4433423 | High quality delta modulator | — | 1984-02-21 |