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 Lubomir Lejsek, Vladimir Franc, Eduard Rovnanik, Augustin Vichta, Jan Fojtik, Jan Kovar, Zdenek Pilar, Z ZdenekfiledCriticalLubomir Lejsek
Priority to CS71978ApriorityCriticalpatent/CS194069B1/cs
Publication of CS194069B1publicationCriticalpatent/CS194069B1/cs