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PCE
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DIFF Subgroup
G11B 17/0401

Full Title

Guiding record carriers not specifically of filamentary or web form, or of supports therefor (guiding cards or sheets G06K13/00) > Details > Feeding or guiding single record carrier to or from transducer unit

Of 2 combined children, 0 exist in both systems.

2 codes are CPC-only extensions.