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Priority claimed from US06/903,791external-prioritypatent/US4705820A/en
Priority claimed from US06/903,798external-prioritypatent/US4857602A/en
Priority claimed from US06/903,799external-prioritypatent/US4711241A/en
Application filed by American Cyanamid CofiledCriticalAmerican Cyanamid Co
Priority claimed from EP87112087Aexternal-prioritypatent/EP0258749B1/de
Application grantedgrantedCritical
Publication of ATE77246T1publicationCriticalpatent/ATE77246T1/de