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Priority to JP10679475UpriorityCriticalpatent/JPS5426005Y2/ja
Priority to US05/707,631prioritypatent/US4087845A/en
Priority to DE19762634161prioritypatent/DE2634161A1/de
Publication of JPS5220819UpublicationCriticalpatent/JPS5220819U/ja
Application grantedgrantedCritical
Publication of JPS5426005Y2publicationCriticalpatent/JPS5426005Y2/ja