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Priority to SU1814473ApriorityCriticalpatent/SU413261A1/ru
Priority claimed from SU1814473Aexternal-prioritypatent/SU413261A1/ru
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Publication of SU413261A2publicationCriticalpatent/SU413261A2/ru
Publication of SU413261A1publicationCriticalpatent/SU413261A1/ru