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 Radij P Papkovskij, Grigorij D Suchoverchov, Sergej I SumacevfiledCriticalRadij P Papkovskij
Priority to CS846256ApriorityCriticalpatent/CS258048B1/en
Publication of CS625684A1publicationCriticalpatent/CS625684A1/en
Publication of CS258048B1publicationCriticalpatent/CS258048B1/en