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Publication of SU380858A1publicationCriticalpatent/SU380858A1/ru
Priority claimed from SU1701358Aexternal-prioritypatent/SU380858A1/ru
Application filedfiledCritical
Priority to SU1701358ApriorityCriticalpatent/SU380858A1/ru
Application grantedgrantedCritical
Publication of SU380858A2publicationCriticalpatent/SU380858A2/ru