Н. С. Федотов В. Ф. Миронов Е. И. Минскер Г. В. син
В. В. Северный
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 SU1852736ApriorityCriticalpatent/SU435243A1/ru
Application grantedgrantedCritical
Publication of SU435243A1publicationCriticalpatent/SU435243A1/ru