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Priority claimed from DE19722261745external-prioritypatent/DE2261745A1/en
Priority claimed from AT395073Aexternal-prioritypatent/AT337685B/en
Application filed by Merck Patent GmbhfiledCriticalMerck Patent Gmbh
Priority to AT870175ApriorityCriticalpatent/AT337690B/en
Publication of ATA870175ApublicationCriticalpatent/ATA870175A/en
Application grantedgrantedCritical
Publication of AT337690BpublicationCriticalpatent/AT337690B/en