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.Ф. СницерfiledCriticalИ.Ф. Сницер
Priority to SU169627ApriorityCriticalpatent/SU48387A1/en
Application grantedgrantedCritical
Publication of SU48387A1publicationCriticalpatent/SU48387A1/en