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Priority claimed from US06/907,909external-prioritypatent/US4711893A/en
Application filed by Merck Patent GmbhfiledCriticalMerck Patent Gmbh
Priority claimed from EP87906082Aexternal-prioritypatent/EP0281608B1/de
Application grantedgrantedCritical
Publication of ATE54444T1publicationCriticalpatent/ATE54444T1/de