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Priority claimed from US06/684,936external-prioritypatent/US4624655A/en
Priority claimed from US06/684,946external-prioritypatent/US4659325A/en
Application filed by Du PontfiledCriticalDu Pont
Priority claimed from EP19850116225external-prioritypatent/EP0186863B1/de
Application grantedgrantedCritical
Publication of ATE50927T1publicationCriticalpatent/ATE50927T1/de