| http://www.w3.org/ns/prov#value | - The sensor comprises a circuit including the trip coil, the capacitor,...http://www.google.es/patents/US4360853?utm_source=gb-gplus-sharePatente US4360853 - Capacitor voltage and trip coil impedance sensor with high voltage isolation B???squeda avanzada de patentes N???mero de publicaci???nUS4360853 ATipo de publicaci???nConcesi???n N???mero de solicitudUS 06/294,147 Fecha de publicaci???n23 Nov 1
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