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Priority to JP50112943ApriorityCriticalpatent/JPS5236795A/ja
Priority to US05/719,969prioritypatent/US4077915A/en
Priority to DE2641996Aprioritypatent/DE2641996C3/de
Publication of JPS5236795ApublicationCriticalpatent/JPS5236795A/ja
Publication of JPS5329388B2publicationCriticalpatent/JPS5329388B2/ja