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 Burysek Frantisek, Jezek Jan, Pavel AndrlikfiledCriticalBurysek Frantisek
Priority to CS876811ApriorityCriticalpatent/CS268313B1/en
Publication of CS681187A1publicationCriticalpatent/CS681187A1/en
Publication of CS268313B1publicationCriticalpatent/CS268313B1/en