Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Hitachi Ltd
Original Assignee
Hitachi Ltd
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Filing date
Publication date
Application filed by Hitachi LtdfiledCriticalHitachi Ltd
Priority to JP2916576ApriorityCriticalpatent/JPS52112747A/en
Publication of JPS52112747ApublicationCriticalpatent/JPS52112747A/en
PURPOSE: To obtain the arrester removed of the inutile space by allowing the shape of the extinction plate to be accorded with the arrangement of the main discharge electrode.