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Priority to JP9318873ApriorityCriticalpatent/JPS577919B2/ja
Priority to DE2439848Aprioritypatent/DE2439848C2/de
Publication of JPS5042849ApublicationCriticalpatent/JPS5042849A/ja
Priority to US05/725,348prioritypatent/US4214249A/en
Publication of JPS577919B2publicationCriticalpatent/JPS577919B2/ja