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Priority claimed from DE2507704Aexternal-prioritypatent/DE2507704C3/de
Priority to AT594677ApriorityCriticalpatent/AT350547B/de
Application filed by Kuhn Dr & CofiledCriticalKuhn Dr & Co
Publication of ATA734677ApublicationCriticalpatent/ATA734677A/de
Application grantedgrantedCritical
Publication of AT351092BpublicationCriticalpatent/AT351092B/de