Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE1900117218Dexternal-prioritypatent/DE117218C/de
Application filed by Emil Hermann NackefiledCriticalEmil Hermann Nacke
Application grantedgrantedCritical
Publication of AT6025BpublicationCriticalpatent/AT6025B/de