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 Boris N Cubinidze, Nikolaj F Vasiljev, Nikolaj F LescenkofiledCriticalBoris N Cubinidze
Priority to CS845817ApriorityCriticalpatent/CS266213B1/en
Publication of CS581784A1publicationCriticalpatent/CS581784A1/en
Publication of CS266213B1publicationCriticalpatent/CS266213B1/en