CPC Subgroup
G11B 17/022 Positioning or locking of single discs
Full Title
Guiding record carriers not specifically of filamentary or web form, or of supports therefor (guiding cards or sheets G06K13/00) > Details > Positioning or locking of single discs
2 direct subcodes
Child Classifications
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- G11B 17/025 of discs which are stationary during transducing operation
- G11B 17/028 of discs rotating during transducing operation