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.)
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Publication date
Application filed by Valerij F Nevolin, Inna M Ivanova, Nina N Kudrjasova, Vasilij A Alesin, Galina I Sazonova, Alexandr M Bantikov, Gennadij A NovikovfiledCriticalValerij F Nevolin
Priority to CS844202ApriorityCriticalpatent/CS259023B1/en
Publication of CS420284A1publicationCriticalpatent/CS420284A1/en
Publication of CS259023B1publicationCriticalpatent/CS259023B1/en