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Priority to JP18422781UpriorityCriticalpatent/JPS5887303U/ja
Publication of JPS5887303UpublicationCriticalpatent/JPS5887303U/ja
Priority to KR2019860007939Uprioritypatent/KR890003933Y1/ko
Application grantedgrantedCritical
Publication of JPS6220961Y2publicationCriticalpatent/JPS6220961Y2/ja