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Priority to JP18996685UpriorityCriticalpatent/JPS6341888Y2/ja
Priority to KR2019860000674Uprioritypatent/KR900004534Y1/ko
Publication of JPS6297569UpublicationCriticalpatent/JPS6297569U/ja
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Publication of JPS6341888Y2publicationCriticalpatent/JPS6341888Y2/ja