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. Григоровский, О.Ю. МагидсонfiledCriticalА.М. Григоровский
Priority to SU154263ApriorityCriticalpatent/SU44548A1/ru
Application grantedgrantedCritical
Publication of SU44548A1publicationCriticalpatent/SU44548A1/ru