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Application filed by Jakov B Gozman, Nikolaj N Leonov, Julij I Malkin, Vladimir I SulgafiledCriticalJakov B Gozman
Priority to CS844203ApriorityCriticalpatent/CS256934B1/en
Publication of CS420384A1publicationCriticalpatent/CS420384A1/en
Publication of CS256934B1publicationCriticalpatent/CS256934B1/en