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Priority to JP1989101624UpriorityCriticalpatent/JPH0635582Y2/ja
Priority to KR2019900010734Uprioritypatent/KR920007598Y1/ko
Publication of JPH0339991UpublicationCriticalpatent/JPH0339991U/ja
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Publication of JPH0635582Y2publicationCriticalpatent/JPH0635582Y2/ja