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. ПанковfiledCriticalГ.В. Панков
Priority to SU170503ApriorityCriticalpatent/SU45743A1/ru
Application grantedgrantedCritical
Publication of SU45743A1publicationCriticalpatent/SU45743A1/ru