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Priority to JP14107986UpriorityCriticalpatent/JPS6347804U/ja
Priority to US07/092,644prioritypatent/US4817972A/en
Priority to DE8787113328Tprioritypatent/DE3766684D1/de
Priority to EP87113328Aprioritypatent/EP0263982B1/en
Publication of JPS6347804UpublicationCriticalpatent/JPS6347804U/ja