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Publication of SU400378A1publicationCriticalpatent/SU400378A1/ru
Priority claimed from SU1765890Aexternal-prioritypatent/SU400378A1/ru
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Priority to SU1765890ApriorityCriticalpatent/SU400378A1/ru
Application grantedgrantedCritical
Publication of SU400378A2publicationCriticalpatent/SU400378A2/ru