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 Vlastimil BecvarfiledCriticalVlastimil Becvar
Priority to CS890277ApriorityCriticalpatent/CS191375B1/cs
Publication of CS191375B1publicationCriticalpatent/CS191375B1/cs