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Priority to SU1772033ApriorityCriticalpatent/SU410361A1/ru
Priority claimed from SU1772033Aexternal-prioritypatent/SU410361A1/ru
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Publication of SU410361A2publicationCriticalpatent/SU410361A2/ru
Publication of SU410361A1publicationCriticalpatent/SU410361A1/ru