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Priority claimed from DE19702051304external-prioritypatent/DE2051304A1/en
Priority claimed from DE19712132934external-prioritypatent/DE2132934A1/en
Application filed by Bayer AgfiledCriticalBayer Ag
Application grantedgrantedCritical
Publication of AT323431BpublicationCriticalpatent/AT323431B/en