Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing

Child Classifications

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• G11B 25/02 using cylindrical record carriers
• G11B 25/04 using flat record carriers, e.g. disc, card
• G11B 25/06 using web-form record carriers, e.g. tape
• G11B 25/08 using filamentary record carriers, e.g. wire
• G11B 25/10 Apparatus capable of using record carriers defined in more than one of the sub-groups G11B25/02 - G11B25/08;