Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Karl WolffiledCriticalKarl Wolf
Application grantedgrantedCritical
Publication of AT52438BpublicationCriticalpatent/AT52438B/en
Electricity meter unauthorised magnetic interference detector - undergoes permanent change in magnetic field using either magnetically-operated leaf microswitch or resonant circuit
Electricity meter unauthorised magnetic interference detector - undergoes permanent change in magnetic field using either magnetically-operated leaf microswitch or resonant circuit
Device for measuring the energy consumption in direct current systems by means of an electricity meter with a permanent magnet and an armature arranged in its field