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Priority to JP9715473ApriorityCriticalpatent/JPS5047173A/ja
Priority to US502070Aprioritypatent/US3909572A/en
Priority to FR7429698Aprioritypatent/FR2242768B1/fr
Priority to DE2441561Aprioritypatent/DE2441561B2/de
Publication of JPS5047173ApublicationCriticalpatent/JPS5047173A/ja