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Application filed by М.Н. Залиопо, Д.Б. ЛурьеfiledCriticalМ.Н. Залиопо
Priority to SU175726ApriorityCriticalpatent/SU48959A1/ru
Application grantedgrantedCritical
Publication of SU48959A1publicationCriticalpatent/SU48959A1/ru