DIFF Subgroup
G01D 4/18 Apparatus for indicating or recording overconsumption with opposing torque which comes into effect when a predetermined level is exceeded, e.g. subtraction meters
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Tariff metering apparatus > Apparatus for indicating or recording overconsumption with opposing torque which comes into effect when a predetermined level is exceeded, e.g. subtraction meters
CPC:
Tariff metering apparatus (in taximeters G07B13/00; apparatus actuated by coins, cards or the like with meter-controlled dispensing of liquid, gas, or electricity G07F15/00) > Apparatus for indicating or recording overconsumption with opposing torque which comes into effect when a predetermined level is exceeded, e.g. subtraction meters
No child classifications to compare. This is a leaf node in both IPC and CPC.