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Publication of SU404714A1publicationCriticalpatent/SU404714A1/ru
Priority claimed from SU1782005Aexternal-prioritypatent/SU404714A1/ru
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Priority to SU1782005ApriorityCriticalpatent/SU404714A1/ru
Application grantedgrantedCritical
Publication of SU404714A2publicationCriticalpatent/SU404714A2/ru