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.П. ВдовиченкоfiledCriticalД.П. Вдовиченко
Priority to SU379245ApriorityCriticalpatent/SU77305A1/ru
Application grantedgrantedCritical
Publication of SU77305A1publicationCriticalpatent/SU77305A1/ru