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Priority claimed from GB929208396Aexternal-prioritypatent/GB9208396D0/en
Application filed by 帝国化学工业公司filedCritical帝国化学工业公司
Publication of HK1004561A1publicationCriticalpatent/HK1004561A1/zh
Publication of HK1004561BpublicationCriticalpatent/HK1004561B/zh