Record players
US4247118A · kind A · utility
0Cited by
2References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 15, 1979 |
| Grant date | Jan 27, 1981 |
| Priority date | — |
| Expiry date | Mar 15, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B3/08509
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A muting switch for co-operation with the phono sockets of a record player to short circuit the leads from the pick-up, which are connected to the phono socket, at all times except when a record is being played.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.