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Priority to JP47025032ApriorityCriticalpatent/JPS5017520B2/ja
Priority to GB5434372Aprioritypatent/GB1409817A/en
Publication of JPS4892499ApublicationCriticalpatent/JPS4892499A/ja
Publication of JPS5017520B2publicationCriticalpatent/JPS5017520B2/ja