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 DE1902149997Dexternal-prioritypatent/DE149997C/de
Application filed by Richard KnoellnerfiledCriticalRichard Knoellner
Application grantedgrantedCritical
Publication of AT19215BpublicationCriticalpatent/AT19215B/de