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 Petr Ing Smolek, Josef Ing Stichauer, Cernohorsky VladimirfiledCriticalPetr Ing Smolek
Priority to CS843880ApriorityCriticalpatent/CS240054B1/en
Publication of CS388084A1publicationCriticalpatent/CS388084A1/en
Publication of CS240054B1publicationCriticalpatent/CS240054B1/en