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Priority to SU1700694ApriorityCriticalpatent/SU411137A1/ru
Priority claimed from SU1700694Aexternal-prioritypatent/SU411137A1/ru
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Publication of SU411137A2publicationCriticalpatent/SU411137A2/ru
Publication of SU411137A1publicationCriticalpatent/SU411137A1/ru