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 Antonin Mvdr Urbanek, Oldrich Papez, Frantisek Ing Benicek, Vojtech MarekfiledCriticalAntonin Mvdr Urbanek
Priority to CS827442ApriorityCriticalpatent/CS231331B1/en
Publication of CS744282A1publicationCriticalpatent/CS744282A1/en
Publication of CS231331B1publicationCriticalpatent/CS231331B1/en