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.С. Белина, О.Ю. МагидсонfiledCriticalА.С. Белина
Priority to SU339259ApriorityCriticalpatent/SU75970A1/ru
Application grantedgrantedCritical
Publication of SU75970A1publicationCriticalpatent/SU75970A1/ru