Б. П. Колесников В. А. Кононенко А. Н. Лукь нов изобретени А. Г. Аракелов
Л. Пол В. В. Малов
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 filedfiledCritical
Priority to SU1600846ApriorityCriticalpatent/SU426174A1/ru
Application grantedgrantedCritical
Publication of SU426174A1publicationCriticalpatent/SU426174A1/ru