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.Я. Брейтбарт, М.М. Вейсбейн, Э.М. РубчинскийfiledCriticalА.Я. Брейтбарт
Priority to SU193523ApriorityCriticalpatent/SU50360A1/en
Application grantedgrantedCritical
Publication of SU50360A1publicationCriticalpatent/SU50360A1/en