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 С. Ш. ДрейцерfiledCriticalС. Ш. Дрейцер
Priority to SU782599895ApriorityCriticalpatent/SU682629A1/en
Application grantedgrantedCritical
Publication of SU682629A1publicationCriticalpatent/SU682629A1/en