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Priority claimed from US06/327,138external-prioritypatent/US4369142A/en
Priority claimed from US06/442,933external-prioritypatent/US4486358A/en
Application filed by Ciba Geigy AgfiledCriticalCiba Geigy Ag
Priority claimed from EP82810512Aexternal-prioritypatent/EP0081459B1/en
Application grantedgrantedCritical
Publication of ATE13890T1publicationCriticalpatent/ATE13890T1/en