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Priority to JP14254175UpriorityCriticalpatent/JPS5819515Y2/ja
Priority to US05/722,242prioritypatent/US4094139A/en
Publication of JPS5255762UpublicationCriticalpatent/JPS5255762U/ja
Application grantedgrantedCritical
Publication of JPS5819515Y2publicationCriticalpatent/JPS5819515Y2/ja