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 Н.В. АгафоновfiledCriticalН.В. Агафонов
Priority to SU18128ApriorityCriticalpatent/SU19476A1/ru
Application grantedgrantedCritical
Publication of SU19476A1publicationCriticalpatent/SU19476A1/ru