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. Даниленко, Я.И. ХисинfiledCriticalВ.А. Даниленко
Priority to SU2228ApriorityCriticalpatent/SU65296A1/ru
Application grantedgrantedCritical
Publication of SU65296A1publicationCriticalpatent/SU65296A1/ru