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Priority to JP1988139837UpriorityCriticalpatent/JPH0719004Y2/ja
Priority to KR1019890003569Aprioritypatent/KR900006658A/ko
Publication of JPH0260874UpublicationCriticalpatent/JPH0260874U/ja
Priority to KR9203667Uprioritypatent/KR920008690Y1/ko
Application grantedgrantedCritical
Publication of JPH0719004Y2publicationCriticalpatent/JPH0719004Y2/ja