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Priority claimed from DE1901138387Dexternal-prioritypatent/DE138387C/de
Application filed by Carl IlgnerfiledCriticalCarl Ilgner
Priority to AT14146DpriorityCriticalpatent/AT14146B/de
Application grantedgrantedCritical
Publication of AT14145BpublicationCriticalpatent/AT14145B/de