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 Petr J Fadejev, Vladimir J Fadejev, Vladlen V Korobkov, Rim A Kulagin, Nikolaj P ErmilovfiledCriticalPetr J Fadejev
Priority to CS87519ApriorityCriticalpatent/CS262904B1/en
Publication of CS51987A1publicationCriticalpatent/CS51987A1/en
Publication of CS262904B1publicationCriticalpatent/CS262904B1/en