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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Application filed by Mitsubishi Electric CorpfiledCriticalMitsubishi Electric Corp
Priority to JP2384076ApriorityCriticalpatent/JPS52106549A/en
Publication of JPS52106549ApublicationCriticalpatent/JPS52106549A/en
PURPOSE: Elevator speed detecting apparatus having tachometer a.c. generator, in which cage speed produces no blind range while feed back signal, to eneable precise speed control.