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Priority to JP2555573ApriorityCriticalpatent/JPS5637513B2/ja
Priority to US447410Aprioritypatent/US3875738A/en
Priority to DE2410445Aprioritypatent/DE2410445C2/de
Publication of JPS49114919ApublicationCriticalpatent/JPS49114919A/ja
Publication of JPS5637513B2publicationCriticalpatent/JPS5637513B2/ja