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Application filed by А.М. Григоровский, О.Ю. МагидсонfiledCriticalА.М. Григоровский
Priority to SU182267ApriorityCriticalpatent/SU47689A1/ru
Application grantedgrantedCritical
Publication of SU47689A1publicationCriticalpatent/SU47689A1/ru