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Priority to JP1989146438UpriorityCriticalpatent/JPH0512006Y2/ja
Priority to KR2019900020096Uprioritypatent/KR950009518Y1/ko
Publication of JPH0387206UpublicationCriticalpatent/JPH0387206U/ja
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Publication of JPH0512006Y2publicationCriticalpatent/JPH0512006Y2/ja