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Priority to JP17046380UpriorityCriticalpatent/JPS6132151Y2/ja
Priority to US06/312,262prioritypatent/US4462363A/en
Publication of JPS5792881UpublicationCriticalpatent/JPS5792881U/ja
Application grantedgrantedCritical
Publication of JPS6132151Y2publicationCriticalpatent/JPS6132151Y2/ja