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Priority claimed from KR1019970051149Aexternal-prioritypatent/KR100258600B1/ko
Application filed by Lg Chem, Ltd.filedCriticalLg Chem, Ltd.
Publication of HK1029960A1publicationCriticalpatent/HK1029960A1/zh
Publication of HK1029960BpublicationCriticalpatent/HK1029960B/zh