with indication of measured value by calibrated null indicator, e.g. percent bridge, tolerance bridge (G01R17/12, G01R17/16 take precedence)

Full Title

Measuring arrangements involving comparison with a reference value, e.g. bridge > AC or DC measuring bridges > with indication of measured value by calibrated null indicator, e.g. percent bridge, tolerance bridge (G01R17/12, G01R17/16 take precedence)