Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
DIFF Subgroup
G01R 19/175

Indicating the instants of passage of current or voltage through a given value, e.g. passage through zero

Introduced: January 1980

Full Title

Full titles differ between systems:

IPC:

Arrangements for measuring currents or voltages or for indicating presence or sign thereof > Indicating the instants of passage of current or voltage through a given value, e.g. passage through zero

CPC:

Arrangements for measuring currents or voltages or for indicating presence or sign thereof (G01R5/00 takes precedence; for measuring bioelectric currents or voltages A61B5/24) > Indicating the instants of passage of current or voltage through a given value, e.g. passage through zero

No child classifications to compare. This is a leaf node in both IPC and CPC.