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.Н. ПавловfiledCriticalЛ.Н. Павлов
Priority to SU1ApriorityCriticalpatent/SU70631A1/ru
Application grantedgrantedCritical
Publication of SU70631A1publicationCriticalpatent/SU70631A1/ru