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Application filed by А. Сметана , Н. Е. Мельченко, Уральский филиал Всесоюзного ордена Трудового Красного, Знамени тенлотехнического научно исследовательского, института имени Ф. Э. ДзержинскогоfiledCriticalА. Сметана , Н. Е. Мельченко
Priority to SU1808777ApriorityCriticalpatent/SU433331A1/ru
Application grantedgrantedCritical
Publication of SU433331A1publicationCriticalpatent/SU433331A1/ru