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Priority to JP12887687UpriorityCriticalpatent/JPS6438434U/ja
Priority to KR1019880006734Aprioritypatent/KR890004134A/ko
Publication of JPS6438434UpublicationCriticalpatent/JPS6438434U/ja
Priority to KR2019900017772Uprioritypatent/KR910000196Y1/ko