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 В. М. Кузнецов, Л. А. Дука, Московский Лесотехнический ИнститутfiledCriticalВ. М. Кузнецов
Priority to SU1780888ApriorityCriticalpatent/SU414083A2/ru
Application grantedgrantedCritical
Publication of SU414083A1publicationCriticalpatent/SU414083A1/ru
Publication of SU414083A2publicationCriticalpatent/SU414083A2/ru