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Priority to JP9197072ApriorityCriticalpatent/JPS555094B2/ja
Priority to US388270Aprioritypatent/US3898679A/en
Priority to DE2341164Aprioritypatent/DE2341164C3/de
Publication of JPS4949617ApublicationCriticalpatent/JPS4949617A/ja
Publication of JPS555094B2publicationCriticalpatent/JPS555094B2/ja