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Priority claimed from GB909021524Aexternal-prioritypatent/GB9021524D0/en
Application filed by 帝国化学工业公司filedCritical帝国化学工业公司
Publication of HK1008140A1publicationCriticalpatent/HK1008140A1/zh
Publication of HK1008140BpublicationCriticalpatent/HK1008140B/zh