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Priority to JP1987067033UpriorityCriticalpatent/JPH0213517Y2/ja
Priority to KR2019870014795Uprioritypatent/KR900004160Y1/ko
Publication of JPS63177993UpublicationCriticalpatent/JPS63177993U/ja
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Publication of JPH0213517Y2publicationCriticalpatent/JPH0213517Y2/ja