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PCE
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Search for IPC and CPC classification codes or keywords
DIFF Subgroup
G11B 7/006

Overwriting (G11B7/0065 takes precedence)

Introduced: January 2000

Title

Titles differ between systems:

IPC: Overwriting

CPC: Overwriting (G11B7/0065 takes precedence)

Full Title

Full titles differ between systems:

IPC:

Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower power; Record carriers therefor > Recording, reproducing or erasing methods; Read, write or erase circuits therefor > Overwriting

CPC:

Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation , reproducing using an optical beam at lower power ; Record carriers therefor (G11B11/00, G11B13/00 take precedence) > Recording, reproducing or erasing methods; Read, write or erase circuits therefor > Overwriting (G11B7/0065 takes precedence)

Of 1 combined children, 0 exist in both systems.

1 codes are CPC-only extensions.

Child Classifications

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