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Priority to JP48131549ApriorityCriticalpatent/JPS5080973A/ja
Priority to FR7423359Aprioritypatent/FR2252296A1/fr
Priority to SE7409948Aprioritypatent/SE7409948L/xx
Priority to IT28739/74Aprioritypatent/IT1030733B/it
Publication of JPS5080973ApublicationCriticalpatent/JPS5080973A/ja