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 Julius Lindenmeyer Dr IngfiledCriticalJulius Lindenmeyer Dr Ing
Priority to AT913367ApriorityCriticalpatent/AT290893B/de
Application grantedgrantedCritical
Publication of AT290893BpublicationCriticalpatent/AT290893B/de