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Priority claimed from US07/361,411external-prioritypatent/US5073440A/en
Application filed by E. I. Du Pont De Nemours And CompanyfiledCriticalE. I. Du Pont De Nemours And Company
Publication of HK1001191A1publicationCriticalpatent/HK1001191A1/zh
Publication of HK1001191BpublicationCriticalpatent/HK1001191B/zh