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 Bohumir Svitek, Josef SolnarfiledCriticalBohumir Svitek
Priority to CS888828ApriorityCriticalpatent/CS882888A1/en
Publication of CS882888A1publicationCriticalpatent/CS882888A1/en