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 Б.Д. СезеневскийfiledCriticalБ.Д. Сезеневский
Priority to SU114373ApriorityCriticalpatent/SU30820A1/ru
Application grantedgrantedCritical
Publication of SU30820A1publicationCriticalpatent/SU30820A1/ru