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 И.Р. МорозовfiledCriticalИ.Р. Морозов
Priority to SU177160ApriorityCriticalpatent/SU48290A1/en
Application grantedgrantedCritical
Publication of SU48290A1publicationCriticalpatent/SU48290A1/en