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 Производственно-Техническое Объеди-Нение "Уралэнергоцветмет"filedCriticalПроизводственно-Техническое Объеди-Нение "Уралэнергоцветмет"
Priority to SU1638189ApriorityCriticalpatent/SU508866A1/en
Application grantedgrantedCritical
Publication of SU508866A1publicationCriticalpatent/SU508866A1/en