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Priority claimed from US06/494,214external-prioritypatent/US4482539A/en
Priority claimed from US06/550,434external-prioritypatent/US4489070A/en
Application filed by Schering CorpfiledCriticalSchering Corp
Application grantedgrantedCritical
Publication of ATE57096T1publicationCriticalpatent/ATE57096T1/en