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Priority to JP4638873ApriorityCriticalpatent/JPS5610618B2/ja
Priority to DE19742419536prioritypatent/DE2419536B2/de
Publication of JPS49131439ApublicationCriticalpatent/JPS49131439A/ja
Priority to US05/673,619prioritypatent/US4120571A/en
Publication of JPS5610618B2publicationCriticalpatent/JPS5610618B2/ja