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Priority claimed from DE1905186988Dexternal-prioritypatent/DE186988C/de
Application filed by Farbenfab Vorm Bayer F & CofiledCriticalFarbenfab Vorm Bayer F & Co
Priority to AT34403DpriorityCriticalpatent/AT34403B/de
Application grantedgrantedCritical
Publication of AT34403BpublicationCriticalpatent/AT34403B/de