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 Ф.М. Вазанов, В.В. КоноваловfiledCriticalФ.М. Вазанов
Priority to SU6374ApriorityCriticalpatent/SU75223A1/en
Application grantedgrantedCritical
Publication of SU75223A1publicationCriticalpatent/SU75223A1/en