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Application filed by Тверской политехнический институтfiledCriticalТверской политехнический институт
Priority to SU4865466/11ApriorityCriticalpatent/RU1748392C/ru
Priority claimed from SU4865466/11Aexternal-prioritypatent/RU1748392C/ru
Application grantedgrantedCritical
Publication of SU1748392A1publicationCriticalpatent/SU1748392A1/ru
Publication of RU1748392CpublicationCriticalpatent/RU1748392C/ru