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 П.А. ПодхалюзинfiledCriticalП.А. Подхалюзин
Priority to SU2420ApriorityCriticalpatent/SU72027A1/ru
Application grantedgrantedCritical
Publication of SU72027A1publicationCriticalpatent/SU72027A1/ru