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 Г.В. Лабутин, Г.С. МорозовfiledCriticalГ.В. Лабутин
Priority to SU44351ApriorityCriticalpatent/SU72063A1/ru
Application grantedgrantedCritical
Publication of SU72063A1publicationCriticalpatent/SU72063A1/ru