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Priority claimed from US06/679,150external-prioritypatent/US4623650A/en
Application filed by PfizerfiledCriticalPfizer
Priority claimed from EP85308651Aexternal-prioritypatent/EP0184384B1/en
Application grantedgrantedCritical
Publication of ATE45146T1publicationCriticalpatent/ATE45146T1/en