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.В. РабиновичfiledCriticalИ.В. Рабинович
Priority to SU2280ApriorityCriticalpatent/SU72075A1/en
Application grantedgrantedCritical
Publication of SU72075A1publicationCriticalpatent/SU72075A1/en