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Priority to JP11755473ApriorityCriticalpatent/JPS5616401B2/ja
Priority to US05/515,015prioritypatent/US4031383A/en
Priority to DE2449719Aprioritypatent/DE2449719C3/de
Publication of JPS5068325ApublicationCriticalpatent/JPS5068325A/ja
Publication of JPS5616401B2publicationCriticalpatent/JPS5616401B2/ja