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 Д.Н. НедогоровfiledCriticalД.Н. Недогоров
Priority to SU1309ApriorityCriticalpatent/SU63825A1/ru
Application grantedgrantedCritical
Publication of SU63825A1publicationCriticalpatent/SU63825A1/ru