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Priority to JP1989132778UpriorityCriticalpatent/JPH069758Y2/ja
Priority to KR2019900002206Uprioritypatent/KR950009208Y1/ko
Publication of JPH0370899UpublicationCriticalpatent/JPH0370899U/ja
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Publication of JPH069758Y2publicationCriticalpatent/JPH069758Y2/ja