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 И.С. Гаев, Р.С. СоколовfiledCriticalИ.С. Гаев
Priority to SU184251ApriorityCriticalpatent/SU50155A1/en
Application grantedgrantedCritical
Publication of SU50155A1publicationCriticalpatent/SU50155A1/en