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 Е.П. Клебанова-ПоповичfiledCriticalЕ.П. Клебанова-Попович
Priority to SU378454ApriorityCriticalpatent/SU77259A1/ru
Application grantedgrantedCritical
Publication of SU77259A1publicationCriticalpatent/SU77259A1/ru