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Priority to JP1988102917UpriorityCriticalpatent/JPH075111Y2/ja
Priority to US07/372,454prioritypatent/US4967917A/en
Priority to KR2019890011300Uprioritypatent/KR920003797Y1/ko
Publication of JPH0226089UpublicationCriticalpatent/JPH0226089U/ja
Application grantedgrantedCritical
Publication of JPH075111Y2publicationCriticalpatent/JPH075111Y2/ja