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Priority to JP11390272ApriorityCriticalpatent/JPS5131668B2/ja
Priority to US380282Aprioritypatent/US3863777A/en
Priority to FR7336925Aprioritypatent/FR2213229B1/fr
Publication of JPS4971675ApublicationCriticalpatent/JPS4971675A/ja
Publication of JPS5131668B2publicationCriticalpatent/JPS5131668B2/ja