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Priority to JP290473ApriorityCriticalpatent/JPS5210759B2/ja
Priority to US05/392,372prioritypatent/US4013895A/en
Priority to GB4043773Aprioritypatent/GB1441134A/en
Publication of JPS4987000ApublicationCriticalpatent/JPS4987000A/ja
Publication of JPS5210759B2publicationCriticalpatent/JPS5210759B2/ja