CPC Subgroup
G01R 7/02 for forming a sum or a difference
Full Title
Instruments capable of converting two or more currents or voltages into a single mechanical displacement (G01R9/00 takes precedence) > for forming a sum or a difference
G01R 7/02 Instruments capable of converting two or more currents or voltages into a single mechanical displacement (G01R9/00 takes precedence) > for forming a sum or a difference