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Publication of SU407058A1publicationCriticalpatent/SU407058A1/ru
Priority claimed from SU1768313Aexternal-prioritypatent/SU407058A1/ru
Application filedfiledCritical
Priority to SU1768313ApriorityCriticalpatent/SU407058A1/ru
Application grantedgrantedCritical
Publication of SU407058A2publicationCriticalpatent/SU407058A2/ru