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Priority to JP8798987UpriorityCriticalpatent/JPH057025Y2/ja
Priority to KR1019880006463Aprioritypatent/KR930001627B1/ko
Publication of JPS63195887UpublicationCriticalpatent/JPS63195887U/ja
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Publication of JPH057025Y2publicationCriticalpatent/JPH057025Y2/ja