G11B 15/04 Preventing, inhibiting, or warning against accidental erasing or double recording (G11B15/05 takes precedence)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Preventing, inhibiting, or warning against accidental erasing or double recording
CPC: Preventing, inhibiting, or warning against accidental erasing or double recording (G11B15/05 takes precedence)
Full Title
Full titles differ between systems:
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 > Control of operating function, e.g. switching from recording to reproducing > Preventing, inhibiting, or warning against accidental erasing or double recording
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) > Control of operating function, e.g. switching from recording to reproducing > Preventing, inhibiting, or warning against accidental erasing or double recording (G11B15/05 takes precedence)
No child classifications to compare. This is a leaf node in both IPC and CPC.