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Application filed by Alexej S Adonin, Lev N Michajlov, Dmitrij V Paslov, Michail N Titov, Georgij V Tichomirov, Lev P CholodnyjfiledCriticalAlexej S Adonin
Priority to CS877819ApriorityCriticalpatent/CS781987A1/en
Publication of CS781987A1publicationCriticalpatent/CS781987A1/en