Patent classifications
G
PHYSICS
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G11
INFORMATION STORAGE
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G11B
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
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19/00
Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function; ; Driving both disc and head
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G11B19/02
Control of operating function, e.g. switching from recording to reproducing
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G11B19/08
by using devices external to the driving mechanisms, e.g. coin-freed switch
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