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Priority to JP16058180UpriorityCriticalpatent/JPS5784597U/ja
Priority to DE19813138068prioritypatent/DE3138068A1/de
Priority to US06/306,830prioritypatent/US4486742A/en
Priority to FR8120949Aprioritypatent/FR2494015A1/fr
Publication of JPS5784597UpublicationCriticalpatent/JPS5784597U/ja