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 Л.Г. УсиковfiledCriticalЛ.Г. Усиков
Priority to SU88383ApriorityCriticalpatent/SU32065A1/ru
Application grantedgrantedCritical
Publication of SU32065A1publicationCriticalpatent/SU32065A1/ru