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.Б. ШерстобитовfiledCriticalА.Б. Шерстобитов
Priority to SU168073ApriorityCriticalpatent/SU47378A1/ru
Application grantedgrantedCritical
Publication of SU47378A1publicationCriticalpatent/SU47378A1/ru