Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 4843509 | Apparatus for demagnetizing the magnetic head of a cassette tape recording and/or reproducing device | — | 1989-06-27 | $197,000 |
| 4825319 | Cartridge-shaped cleaning device | — | 1989-04-25 | $218,000 |
| 4628361 | Video synchronizing signal separator | — | 1986-12-09 | $305,000 |