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Priority to JP15278075UpriorityCriticalpatent/JPS5610904Y2/ja
Priority to US05/713,617prioritypatent/US4071006A/en
Publication of JPS5264230UpublicationCriticalpatent/JPS5264230U/ja
Application grantedgrantedCritical
Publication of JPS5610904Y2publicationCriticalpatent/JPS5610904Y2/ja