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 Ф.П. ПоплавецfiledCriticalФ.П. Поплавец
Priority to SU32968ApriorityCriticalpatent/SU13497A1/ru
Application grantedgrantedCritical
Publication of SU13497A1publicationCriticalpatent/SU13497A1/ru