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 В.А. Белицын, К.Н. БыстроуевfiledCriticalВ.А. Белицын
Priority to SU116746ApriorityCriticalpatent/SU31103A1/ru
Application grantedgrantedCritical
Publication of SU31103A1publicationCriticalpatent/SU31103A1/ru