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Priority to JP1988156356UpriorityCriticalpatent/JPH0623262Y2/ja
Priority to KR2019890017174Uprioritypatent/KR920000410Y1/ko
Publication of JPH0278068UpublicationCriticalpatent/JPH0278068U/ja
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Publication of JPH0623262Y2publicationCriticalpatent/JPH0623262Y2/ja