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Priority claimed from DE1901130742Dexternal-prioritypatent/DE130742C/de
Priority claimed from DE1901131404Dexternal-prioritypatent/DE131404C/de
Application filed by C F Boehringer & Soehne FafiledCriticalC F Boehringer & Soehne Fa
Application grantedgrantedCritical
Publication of AT13089BpublicationCriticalpatent/AT13089B/de