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 Le I Sovet Torgovli EngelsafiledCriticalLe I Sovet Torgovli Engelsa
Priority to SU904877840ApriorityCriticalpatent/RU1769833C/en
Application grantedgrantedCritical
Publication of RU1769833CpublicationCriticalpatent/RU1769833C/en