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Priority to JP11457172ApriorityCriticalpatent/JPS5534407B2/ja
Priority to US389507Aprioritypatent/US3886567A/en
Priority to DE2343391Aprioritypatent/DE2343391C3/de
Publication of JPS4974534ApublicationCriticalpatent/JPS4974534A/ja
Publication of JPS5534407B2publicationCriticalpatent/JPS5534407B2/ja