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
Application filed by Otto KrahlfiledCriticalOtto Krahl
Priority to AT19304DpriorityCriticalpatent/AT19304B/de
Application grantedgrantedCritical
Publication of AT19304BpublicationCriticalpatent/AT19304B/de
