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Priority claimed from DE2223391Aexternal-prioritypatent/DE2223391C3/de
Priority claimed from DE19722261745external-prioritypatent/DE2261745A1/de
Priority claimed from AT395073Aexternal-prioritypatent/AT337685B/de
Application filed by Merck Patent GmbhfiledCriticalMerck Patent Gmbh
Priority to AT870075ApriorityCriticalpatent/AT337689B/de
Publication of ATA870075ApublicationCriticalpatent/ATA870075A/de
Application grantedgrantedCritical
Publication of AT337689BpublicationCriticalpatent/AT337689B/de