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Priority to JP1986146458UpriorityCriticalpatent/JPH0248298Y2/ja
Priority to US07/100,790prioritypatent/US4826234A/en
Priority to KR1019870010679Aprioritypatent/KR910000502B1/ko
Publication of JPS6352672UpublicationCriticalpatent/JPS6352672U/ja
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Publication of JPH0248298Y2publicationCriticalpatent/JPH0248298Y2/ja