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 Jaroslav Rndr Ing DzunkofiledCriticalJaroslav Rndr Ing Dzunko
Priority to CS896921ApriorityCriticalpatent/CS692189A3/en
Publication of CS692189A3publicationCriticalpatent/CS692189A3/en