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 Boris Dipl Ing TschernefffiledCriticalBoris Dipl Ing Tscherneff
Priority to AT148075ApriorityCriticalpatent/AT333536B/de
Publication of ATA148075ApublicationCriticalpatent/ATA148075A/de
Application grantedgrantedCritical
Publication of AT333536BpublicationCriticalpatent/AT333536B/de