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DIFF Subgroup
G01R 1/28

Provision in measuring instruments for reference values, e.g. standard voltage, standard waveform

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Details of instruments or arrangements of the types covered by groups or > Provision in measuring instruments for reference values, e.g. standard voltage, standard waveform

CPC:

Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00 (constructional details particular to arrangements for measuring the electric consumption G01R11/02) > Provision in measuring instruments for reference values, e.g. standard voltage, standard waveform

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