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.В. ФатеевfiledCriticalБ.В. Фатеев
Priority to SU2606237/06ApriorityCriticalpatent/RU702755C/en
Priority claimed from SU2606237/06Aexternal-prioritypatent/RU702755C/en
Application grantedgrantedCritical
Publication of SU702755A1publicationCriticalpatent/SU702755A1/en
Publication of RU702755CpublicationCriticalpatent/RU702755C/en