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.)
Publication date
Priority to AT7033DpriorityCriticalpatent/AT7033B/de
Priority to AT7034Dprioritypatent/AT7034B/de
Application grantedgrantedCritical
Publication of AT6270BpublicationCriticalpatent/AT6270B/de