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Publication of SU368743A1publicationCriticalpatent/SU368743A1/ru
Application filed by В.Т. РеннеfiledCriticalВ.Т. Ренне
Priority to SU1446ApriorityCriticalpatent/SU73225A1/ru
Application grantedgrantedCritical
Publication of SU73225A1publicationCriticalpatent/SU73225A1/ru