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 Bohumil BezdekfiledCriticalBohumil Bezdek
Priority to CS8710319ApriorityCriticalpatent/CS268346B1/en
Publication of CS1031987A1publicationCriticalpatent/CS1031987A1/en
Publication of CS268346B1publicationCriticalpatent/CS268346B1/en