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Application filed by Кировский Политехнический ИнститутfiledCriticalКировский Политехнический Институт
Priority to SU1887900ApriorityCriticalpatent/SU443782A1/ru
Priority claimed from SU1887900Aexternal-prioritypatent/SU443782A1/ru
Application grantedgrantedCritical
Publication of SU443782A2publicationCriticalpatent/SU443782A2/ru
Publication of SU443782A1publicationCriticalpatent/SU443782A1/ru