Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values

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 that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values

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 that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values

CPC subdivides this area 5x more granularly than IPC with 4 additional codes.

4 codes are CPC-only extensions.

IPC defines codes here since 1980.

Child Classifications

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G01R 19/16504 +4 CPC CPC only CPC only
G01R 19/16528 CPC only CPC only
G01R 19/16533 +3 CPC CPC only CPC only
G01R 19/16566 +4 CPC CPC only CPC only
G01R 19/17 giving an indication of the number of times this occurs since 1980 IPC+CPC Available in IPC and CPC