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 Ladislav KadavyfiledCriticalLadislav Kadavy
Priority to CS874473ApriorityCriticalpatent/CS171454B1/en
Publication of CS171454B1publicationCriticalpatent/CS171454B1/en