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Priority to JP1988061749UpriorityCriticalpatent/JPH0513272Y2/ja
Priority to KR2019890006050Uprioritypatent/KR930000659Y1/ko
Publication of JPH01164887UpublicationCriticalpatent/JPH01164887U/ja
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Publication of JPH0513272Y2publicationCriticalpatent/JPH0513272Y2/ja