Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5938410 | Dust sucking/blowing device | — | 1999-08-17 |
| 5504957 | Automatic cleaning device for TV game cassette | — | 1996-04-09 |
| 5416761 | Recording disc cleaning device | — | 1995-05-16 |
| 5075812 | Digital audio tape cassette | — | 1991-12-24 |
| 4674000 | Cleaning device for the magnetic heads of video tape recorders | — | 1987-06-16 |