DIFF Subgroup
G11B 27/30 on the same track as the main recording
Introduced: September 1968
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 the same track as the main recording
Of 5 combined children, 0 exist in both systems.
5 codes are CPC-only extensions.
Child Classifications
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