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Priority to JP7241676ApriorityCriticalpatent/JPS5310577A/ja
Priority to US05/722,122prioritypatent/US4141350A/en
Priority to DE2646018Aprioritypatent/DE2646018B2/de
Publication of JPS5310577ApublicationCriticalpatent/JPS5310577A/ja
Publication of JPS5644741B2publicationCriticalpatent/JPS5644741B2/ja