CPC Subgroup
G11B 27/327 Full Title
Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel > Indexing; Addressing; Timing or synchronising; Measuring tape travel > by using information detectable on the record carrier > by using information signals recorded by the same method as the main recording > on separate auxiliary tracks of the same or an auxiliary record carrier
2 direct subcodes
Child Classifications
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