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Priority to JP1985064008UpriorityCriticalpatent/JPH0217820Y2/ja
Priority to KR2019850006601Uprioritypatent/KR890001609Y1/ko
Publication of JPS61178683UpublicationCriticalpatent/JPS61178683U/ja
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Publication of JPH0217820Y2publicationCriticalpatent/JPH0217820Y2/ja