Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4189735 | Record playback apparatus and information record therefor | Alan E. Bell, Robert A. Bartolini, Brown F. Williams | 1980-02-19 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4189735 | Record playback apparatus and information record therefor | Alan E. Bell, Robert A. Bartolini, Brown F. Williams | 1980-02-19 |