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 А.П. СоколовfiledCriticalА.П. Соколов
Priority to SU5476ApriorityCriticalpatent/SU6260A1/ru
Application grantedgrantedCritical
Publication of SU6260A1publicationCriticalpatent/SU6260A1/ru