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Priority to JP1988029638UpriorityCriticalpatent/JPH0717123Y2/ja
Priority to KR2019890001186Uprioritypatent/KR920000513Y1/ko
Publication of JPH01133703UpublicationCriticalpatent/JPH01133703U/ja
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Publication of JPH0717123Y2publicationCriticalpatent/JPH0717123Y2/ja