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Priority to JP1988156197UpriorityCriticalpatent/JPH0712352Y2/ja
Priority to KR1019890017364Aprioritypatent/KR900008338A/ko
Publication of JPH0279334UpublicationCriticalpatent/JPH0279334U/ja
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Publication of JPH0712352Y2publicationCriticalpatent/JPH0712352Y2/ja