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Priority to JP13223386UpriorityCriticalpatent/JPS6338233U/ja
Priority to US07/089,814prioritypatent/US4841109A/en
Priority to EP87112584Aprioritypatent/EP0262415A1/en
Priority to KR870009438Aprioritypatent/KR880003360A/ko
Publication of JPS6338233UpublicationCriticalpatent/JPS6338233U/ja