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Priority to JP1986163873UpriorityCriticalpatent/JPH0318982Y2/ja
Priority to KR2019870012687Uprioritypatent/KR920001343Y1/ko
Publication of JPS6369904UpublicationCriticalpatent/JPS6369904U/ja
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Publication of JPH0318982Y2publicationCriticalpatent/JPH0318982Y2/ja