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.Н. Богодаров, Г.Д. ГлуховцевfiledCriticalА.Н. Богодаров
Priority to SU82352ApriorityCriticalpatent/SU29562A1/ru
Application grantedgrantedCritical
Publication of SU29562A1publicationCriticalpatent/SU29562A1/ru