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 Stassel LadislavfiledCriticalStassel Ladislav
Priority to CS877029ApriorityCriticalpatent/CS269552B1/en
Publication of CS702987A1publicationCriticalpatent/CS702987A1/en
Publication of CS269552B1publicationCriticalpatent/CS269552B1/en