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Priority to JP12771685UpriorityCriticalpatent/JPH021833Y2/ja
Priority to KR2019860012518Uprioritypatent/KR900002467Y1/ko
Publication of JPS6237189UpublicationCriticalpatent/JPS6237189U/ja
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Publication of JPH021833Y2publicationCriticalpatent/JPH021833Y2/ja