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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 JP10782276ApriorityCriticalpatent/JPS5333387A/en
Publication of JPS5333387ApublicationCriticalpatent/JPS5333387A/en
PURPOSE: To construct a gas sealed bushing with excellent safety, with a damage of the insulating tube not caused by an external insulation break down.