DIFF Subgroup
G11B 3/58 Cleaning record carriers or styli, e.g. removing shavings or dust
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor > Cleaning record carriers or styli, e.g. removing shavings or dust
CPC:
Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor (G11B11/00, take precedence) > Cleaning record carriers or styli, e.g. removing shavings or dust
Of 2 combined children, 0 exist in both systems.
2 codes are CPC-only extensions.
Child Classifications
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