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Priority to JP1987075335UpriorityCriticalpatent/JPS63187527U/ja
Priority to US07/076,151prioritypatent/US4811618A/en
Priority to KR1019870011243Aprioritypatent/KR910004563B1/ko
Publication of JPS63187527UpublicationCriticalpatent/JPS63187527U/ja
