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 О.Ю. Магидсон, О.С. МадаеваfiledCriticalО.Ю. Магидсон
Priority to SU162868ApriorityCriticalpatent/SU44553A1/en
Application grantedgrantedCritical
Publication of SU44553A1publicationCriticalpatent/SU44553A1/en