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Priority to JP1989090095UpriorityCriticalpatent/JPH0537130Y2/ja
Priority to KR2019900010900Uprioritypatent/KR920003240Y1/ko
Publication of JPH0331210UpublicationCriticalpatent/JPH0331210U/ja
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Publication of JPH0537130Y2publicationCriticalpatent/JPH0537130Y2/ja