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Priority to JP1989016599UpriorityCriticalpatent/JPH0450813Y2/ja
Priority to KR2019890005643Uprioritypatent/KR910004629Y1/ko
Publication of JPH02107315UpublicationCriticalpatent/JPH02107315U/ja
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Publication of JPH0450813Y2publicationCriticalpatent/JPH0450813Y2/ja