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PCE
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Search for IPC and CPC classification codes or keywords
DIFF Subgroup
G11B 15/44

Speed-changing arrangements; Reversing arrangements; Drive transfer means therefor

Introduced: September 1968

Title

Titles differ between systems:

IPC: Speed-changing arrangements; Reversing arrangements; Drive-transfer means therefor

CPC: Speed-changing arrangements; Reversing arrangements; Drive transfer means therefor

Full Title

Full titles differ between systems:

IPC:

Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function > Driving; Starting; Stopping; Arrangements for control or regulation thereof > Speed-changing arrangements; Reversing arrangements; Drive-transfer means therefor

CPC:

Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function (driving or guiding heads G11B3/00 - G11B7/00, G11B21/00) > Driving; Starting; Stopping; Arrangements for control or regulation thereof > Speed-changing arrangements; Reversing arrangements; Drive transfer means therefor

Of 2 combined children, 0 exist in both systems.

2 codes are CPC-only extensions.

Child Classifications

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