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Application filed by Н.А. Андреев, Н.М. СтепановfiledCriticalН.А. Андреев
Priority to SU2322ApriorityCriticalpatent/SU66099A1/ru
Application grantedgrantedCritical
Publication of SU66099A1publicationCriticalpatent/SU66099A1/ru
Отв. редактор В. Н. Костров. А0023 Подписано к печати 20/1-1948 г. Типографи Госпланиздата Техн. редактор Г. Ф. Соколова. Тираж 500 экз. Цена 65 к. Зак. 152. им. Воровского, Калуга