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 Lvovskij Politekhn I Im LeninsfiledCriticalLvovskij Politekhn I Im Lenins
Priority to SU904892224ApriorityCriticalpatent/RU1832234C/ru
Application grantedgrantedCritical
Publication of RU1832234CpublicationCriticalpatent/RU1832234C/ru