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Publication date
Application filed by В. И. Чихачева, М. Новиков, И. Я. ЦарейкинfiledCriticalВ. И. Чихачева
Priority to SU1799359ApriorityCriticalpatent/SU428538A2/ru
Application grantedgrantedCritical
Publication of SU428538A1publicationCriticalpatent/SU428538A1/ru
Publication of SU428538A2publicationCriticalpatent/SU428538A2/ru