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 М.М. БурлаковfiledCriticalМ.М. Бурлаков
Priority to SU18244ApriorityCriticalpatent/SU7717A1/en
Application grantedgrantedCritical
Publication of SU7717A1publicationCriticalpatent/SU7717A1/en