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Priority to JP4638573ApriorityCriticalpatent/JPS5610617B2/ja
Priority to DE19742419536prioritypatent/DE2419536B2/de
Publication of JPS49131447ApublicationCriticalpatent/JPS49131447A/ja
Priority to US05/673,619prioritypatent/US4120571A/en
Publication of JPS5610617B2publicationCriticalpatent/JPS5610617B2/ja