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Priority claimed from JP10588283Aexternal-prioritypatent/JPS60658A/ja
Priority claimed from JP58105880Aexternal-prioritypatent/JPH0828052B2/ja
Priority claimed from JP10769983Aexternal-prioritypatent/JPS60662A/ja
Priority claimed from JP16815483Aexternal-prioritypatent/JPS6061954A/ja
Application filed by Hitachi LtdfiledCriticalHitachi Ltd
Priority claimed from EP84106848Aexternal-prioritypatent/EP0129224B1/de
Application grantedgrantedCritical
Publication of ATE57272T1publicationCriticalpatent/ATE57272T1/de