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Publication of SU394290A1publicationCriticalpatent/SU394290A1/ru
Priority claimed from SU1743167Aexternal-prioritypatent/SU394290A1/ru
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Priority to SU1743167ApriorityCriticalpatent/SU394290A1/ru
Application grantedgrantedCritical
Publication of SU394290A2publicationCriticalpatent/SU394290A2/ru