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Application filed by Jurij P Ledjan, David M Kukuj, Josif A Matlin, Vadim G Bass, Vaclav R Balinskij, Nikolaj N GurovfiledCriticalJurij P Ledjan
Priority to CS815895ApriorityCriticalpatent/CS237963B1/en
Publication of CS589581A1publicationCriticalpatent/CS589581A1/en
Publication of CS237963B1publicationCriticalpatent/CS237963B1/en