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Priority to JP1247372ApriorityCriticalpatent/JPS5520563B2/ja
Priority to US00319452Aprioritypatent/US3857689A/en
Publication of JPS4882842ApublicationCriticalpatent/JPS4882842A/ja
Publication of JPS5520563B2publicationCriticalpatent/JPS5520563B2/ja