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Priority to JP1988091220UpriorityCriticalpatent/JPH0537171Y2/ja
Priority to KR898908370Uprioritypatent/KR920001279Y1/ko
Publication of JPH0213943UpublicationCriticalpatent/JPH0213943U/ja
Application grantedgrantedCritical
Publication of JPH0537171Y2publicationCriticalpatent/JPH0537171Y2/ja
