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Priority to JP1990116493UpriorityCriticalpatent/JPH0616495Y2/ja
Priority to KR1019910008497Aprioritypatent/KR920003841A/ko
Publication of JPH0465054UpublicationCriticalpatent/JPH0465054U/ja
Priority to KR2019940000311Uprioritypatent/KR940002145Y1/ko
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Publication of JPH0616495Y2publicationCriticalpatent/JPH0616495Y2/ja