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Priority claimed from EP87810559Aexternal-prioritypatent/EP0308568A1/en
Application filed by Ciba Geigy AgfiledCriticalCiba Geigy Ag
Priority to ZA877363ApriorityCriticalpatent/ZA877363B/en
Publication of ZA877363BpublicationCriticalpatent/ZA877363B/en