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Hitachi Ltd
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Hitachi Ltd
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Publication date
Application filed by Hitachi LtdfiledCriticalHitachi Ltd
Priority to JP9700376ApriorityCriticalpatent/JPS5323006A/en
Publication of JPS5323006ApublicationCriticalpatent/JPS5323006A/en
PURPOSE: To prevent a holder breakage by a brush pressing spring, by providing a spring holder to prevent a direct hitting of a brush pressing spring to a holder at a brush holder made of synthetic resin used at a revolving electrical motor.