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Priority to SU1716559ApriorityCriticalpatent/SU410251A1/ru
Priority claimed from SU1716559Aexternal-prioritypatent/SU410251A1/ru
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Publication of SU410251A2publicationCriticalpatent/SU410251A2/ru
Publication of SU410251A1publicationCriticalpatent/SU410251A1/ru