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Priority claimed from US06/400,028external-prioritypatent/US4818694A/en
Priority claimed from US06/510,551external-prioritypatent/US4891315A/en
Application filed by American Cyanamid CofiledCriticalAmerican Cyanamid Co
Priority claimed from EP83401476Aexternal-prioritypatent/EP0101655B1/en
Application grantedgrantedCritical
Publication of ATE59679T1publicationCriticalpatent/ATE59679T1/en