using magnetic or electric detecting means

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Patents Grantslast 30 patents

Information Patent Grant
Video disc player with self calibrating stylus translator
- Patent number 4,412,319
- Issue date Oct 25, 1983
- RCA Corporation
- Bryon K. Taylor
- G11 - INFORMATION STORAGE
Information Patent Grant
Phonograph tone arm control system
- Patent number 4,254,959
- Issue date Mar 10, 1981
- Masterson Engineering Inc.
- Earl E. Masterson
- G11 - INFORMATION STORAGE
Information Patent Grant
Video disc player mechanism control system
- Patent number 4,086,617
- Issue date Apr 25, 1978
- RCA Corporation
- Alfred Lynn Baker
- G11 - INFORMATION STORAGE
Information Patent Grant
Tonearm linear-drive apparatus
- Patent number 3,940,149
- Issue date Feb 24, 1976
- Fumitaka Nagamura
- G11 - INFORMATION STORAGE
Information Patent Grant
3444334
- Patent number 3,444,334
- Issue date May 13, 1969
- G07 - CHECKING-DEVICES
Information Patent Grant
3118679
- Patent number 3,118,679
- Issue date Jan 21, 1964
- G11 - INFORMATION STORAGE