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Application filed by В.М. Кубрин, А.Г. ТерентьевfiledCriticalВ.М. Кубрин
Priority to SU379780ApriorityCriticalpatent/SU79105A1/en
Application grantedgrantedCritical
Publication of SU79105A1publicationCriticalpatent/SU79105A1/en