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Priority claimed from US06/907,909external-prioritypatent/US4711893A/en
Priority claimed from PCT/EP1987/000518external-prioritypatent/WO1988001998A1/en
Application filed by Merck Patent GmbhfiledCriticalMerck Patent Gmbh
Publication of HK63093ApublicationCriticalpatent/HK63093A/en