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Priority claimed from DE1899122904Dexternal-prioritypatent/DE122904C/de
Priority claimed from DE1900135167Dexternal-prioritypatent/DE135167C/de
Application filed by Farbenfab Vorm Bayer F & CofiledCriticalFarbenfab Vorm Bayer F & Co
Application grantedgrantedCritical
Publication of AT11860BpublicationCriticalpatent/AT11860B/de