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 Rudolf Travnicek, Lubomir Krojzl, Vladimir Mazal, Svatopluk NavratilfiledCriticalRudolf Travnicek
Priority to CS868175ApriorityCriticalpatent/CS180355B1/en
Publication of CS180355B1publicationCriticalpatent/CS180355B1/en