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Priority claimed from DE1901131213Dexternal-prioritypatent/DE131213C/de
Priority claimed from DE1901129950Dexternal-prioritypatent/DE129950C/de
Application filed by Constanz SchmitzfiledCriticalConstanz Schmitz
Application grantedgrantedCritical
Publication of AT13185BpublicationCriticalpatent/AT13185B/de