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 Ing Petrenko, Miroslav Ing VizvaryfiledCriticalJulius Ing Petrenko
Priority to CS91712ApriorityCriticalpatent/CS71291A3/en
Publication of CS71291A3publicationCriticalpatent/CS71291A3/en