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PCE
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DIFF Subgroup
G11B 23/087

using two different reels or cores

Introduced: January 1985

Full Title

Full titles differ between systems:

IPC:

Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus > Containers; Storing means > Magazines; Cassettes > for housing webs or filaments having two distinct ends > using two different reels or cores

CPC:

Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus > Containers; Storing means > Magazines; Cassettes (G11B23/12 takes precedence ) > for housing webs or filaments having two distinct ends > using two different reels or cores

Of 2 combined children, 1 exist in both systems.

1 codes are CPC-only extensions.

IPC defines codes here since 1985.

Child Classifications

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  • G11B 23/093 the reels or cores being coaxial since 1985 IPC+CPC Available in IPC and CPC