DIFF Subgroup
G11B 21/08 Track changing or selecting (G11B21/12 takes precedence)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Track changing or selecting
CPC: Track changing or selecting (G11B21/12 takes precedence)
Full Title
Full titles differ between systems:
IPC:
Head arrangements not specific to the method of recording or reproducing > Driving or moving of heads > Track changing or selecting
CPC:
Head arrangements not specific to the method of recording or reproducing > Driving or moving of heads > Track changing or selecting (G11B21/12 takes precedence)
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.
Child Classifications
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