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Priority to JP11559277ApriorityCriticalpatent/JPS5449922A/ja
Priority to US05/946,020prioritypatent/US4278581A/en
Priority to DE2842114Aprioritypatent/DE2842114C2/de
Publication of JPS5449922ApublicationCriticalpatent/JPS5449922A/ja
Publication of JPS5518582B2publicationCriticalpatent/JPS5518582B2/ja