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.П. СколдиновfiledCriticalА.П. Сколдинов
Priority to SU381199ApriorityCriticalpatent/SU76217A1/ru
Application grantedgrantedCritical
Publication of SU76217A1publicationCriticalpatent/SU76217A1/ru