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Priority to JP1986030216UpriorityCriticalpatent/JPH0512712Y2/ja
Priority to KR1019870001851Aprioritypatent/KR940000404B1/ko
Publication of JPS62143189UpublicationCriticalpatent/JPS62143189U/ja
Priority to US07/201,323prioritypatent/US4840439A/en
Application grantedgrantedCritical
Publication of JPH0512712Y2publicationCriticalpatent/JPH0512712Y2/ja