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Priority to JP1717273ApriorityCriticalpatent/JPS5551259B2/ja
Priority to DE19742406529prioritypatent/DE2406529C3/de
Publication of JPS49106807ApublicationCriticalpatent/JPS49106807A/ja
Priority to US05/612,332prioritypatent/US3979772A/en
Publication of JPS5551259B2publicationCriticalpatent/JPS5551259B2/ja