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Priority claimed from DE2223391Aexternal-prioritypatent/DE2223391C3/en
Priority claimed from DE19722261745external-prioritypatent/DE2261745A1/en
Priority claimed from AT395073Aexternal-prioritypatent/AT337685B/en
Application filed by Merck Patent GmbhfiledCriticalMerck Patent Gmbh
Priority to AT869975ApriorityCriticalpatent/AT337688B/en
Publication of ATA869975ApublicationCriticalpatent/ATA869975A/en
Application grantedgrantedCritical
Publication of AT337688BpublicationCriticalpatent/AT337688B/en