Video disc processing
US4472337A · kind A · utility
4Cited by
4References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 7, 1979 |
| Grant date | Sep 18, 1984 |
| Priority date | — |
| Expiry date | Nov 7, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B3/682
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Video discs are cleaned with a water-based solution to remove water soluble salts from the surface of the discs, thereby reducing the moisture sensitivity of the discs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.