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Priority to JP45094698ApriorityCriticalpatent/JPS5031041B1/ja
Priority to GB5021771Aprioritypatent/GB1323869A/en
Priority to DE19712153860prioritypatent/DE2153860C2/de
Priority to FR7138904Aprioritypatent/FR2110115A5/fr
Publication of JPS5031041B1publicationCriticalpatent/JPS5031041B1/ja