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Priority to JP12856288UpriorityCriticalpatent/JPH057336Y2/ja
Priority to KR2019890012240Uprioritypatent/KR920002365Y1/ko
Publication of JPH0284864UpublicationCriticalpatent/JPH0284864U/ja
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Publication of JPH057336Y2publicationCriticalpatent/JPH057336Y2/ja