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Priority to JP1815880UpriorityCriticalpatent/JPH0212616Y2/ja
Publication of JPS56121166UpublicationCriticalpatent/JPS56121166U/ja
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Publication of JPH0212616Y2publicationCriticalpatent/JPH0212616Y2/ja
Electronic watt and/or watthour measuring circuit having active load terminated current sensor for sensing current and providing automatic zero-offset of current sensor DC offset error potentials