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 Ctibor Brancovsky, Zdenek Cerny, Jindrich BednarskifiledCriticalCtibor Brancovsky
Priority to CS1677ApriorityCriticalpatent/CS190051B1/cs
Publication of CS190051B1publicationCriticalpatent/CS190051B1/cs