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Priority to JP12087172ApriorityCriticalpatent/JPS5738922B2/ja
Priority to US00326788Aprioritypatent/US3815061A/en
Priority to DE2304621Aprioritypatent/DE2304621C3/de
Publication of JPS4978090ApublicationCriticalpatent/JPS4978090A/ja
Publication of JPS5738922B2publicationCriticalpatent/JPS5738922B2/ja