Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Б. Д. Тартаковский изобретепи, М. М. Эфрусси, В. Б. Чернышев, Г. И. Николаев, Г. Позамонтир А., П. сниковаfiledCriticalБ. Д. Тартаковский изобретепи
Priority to SU1835823ApriorityCriticalpatent/SU427187A2/ru
Application grantedgrantedCritical
Publication of SU427187A1publicationCriticalpatent/SU427187A1/ru
Publication of SU427187A2publicationCriticalpatent/SU427187A2/ru