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Publication date
Application filed by Н. Верещагин В., Ф. Овчинников П., М. Механиков А., Я. Балакирский М.filedCriticalН. Верещагин В.
Priority to SU1739133ApriorityCriticalpatent/SU421378A1/ru
Priority claimed from SU1739133Aexternal-prioritypatent/SU421378A1/ru
Application grantedgrantedCritical
Publication of SU421378A2publicationCriticalpatent/SU421378A2/ru
Publication of SU421378A1publicationCriticalpatent/SU421378A1/ru