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Priority to JP50147982ApriorityCriticalpatent/JPS5271252A/ja
Priority to US05/701,024prioritypatent/US4094583A/en
Priority to GB27846/76Aprioritypatent/GB1549286A/en
Publication of JPS5271252ApublicationCriticalpatent/JPS5271252A/ja
Publication of JPS55724B2publicationCriticalpatent/JPS55724B2/ja