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 Marian Kovalik, Pavol PipiskafiledCriticalMarian Kovalik
Priority to CS640775ApriorityCriticalpatent/CS180296B1/cs
Publication of CS180296B1publicationCriticalpatent/CS180296B1/cs