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 А.М. ЛипскийfiledCriticalА.М. Липский
Priority to SU152756ApriorityCriticalpatent/SU50016A1/ru
Application grantedgrantedCritical
Publication of SU50016A1publicationCriticalpatent/SU50016A1/ru