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 Rudolf Svoboda, Hans SvobodafiledCriticalRudolf Svoboda
Priority to AT168277DpriorityCriticalpatent/AT168277B/de
Application grantedgrantedCritical
Publication of AT168277BpublicationCriticalpatent/AT168277B/de