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Priority claimed from DE1898108681Dexternal-prioritypatent/DE108681C/de
Priority claimed from DE1899113170Dexternal-prioritypatent/DE113170C/de
Application filed by Richard Dr ZsigmondyfiledCriticalRichard Dr Zsigmondy
Application grantedgrantedCritical
Publication of AT5663BpublicationCriticalpatent/AT5663B/de