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Priority to JP1976166676UpriorityCriticalpatent/JPS5749008Y2/ja
Priority to US05/860,575prioritypatent/US4148230A/en
Publication of JPS5383983UpublicationCriticalpatent/JPS5383983U/ja
Application grantedgrantedCritical
Publication of JPS5749008Y2publicationCriticalpatent/JPS5749008Y2/ja