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Application filed by Г.Е. Баркалая, Г.Е. БаркалаfiledCriticalГ.Е. Баркалая
Priority to SU382291ApriorityCriticalpatent/SU76855A1/en
Application grantedgrantedCritical
Publication of SU76855A1publicationCriticalpatent/SU76855A1/en