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 Tibor Felcan, Milan Gulan, Milan Polka, Rudolf Ing SvancarafiledCriticalTibor Felcan
Priority to CS856942ApriorityCriticalpatent/CS256154B1/en
Publication of CS694285A1publicationCriticalpatent/CS694285A1/en
Publication of CS256154B1publicationCriticalpatent/CS256154B1/en