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Application filed by А. В. Самойлов, В. А. Титов , И. А. ШукейлоfiledCriticalА. В. Самойлов, В. А. Титов , И. А. Шукейло
Priority to SU1473458ApriorityCriticalpatent/SU334930A1/ru
Application grantedgrantedCritical
Publication of SU334930A1publicationCriticalpatent/SU334930A1/ru