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Application filed by М.С. ЗаикинfiledCriticalМ.С. Заикин
Priority to SU3599822/06ApriorityCriticalpatent/SU1248374A1/ru
Application grantedgrantedCritical
Publication of RU1248374CpublicationCriticalpatent/RU1248374C/ru
Publication of SU1248374A1publicationCriticalpatent/SU1248374A1/ru