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 Ю. Г. БасовfiledCriticalЮ. Г. Басов
Priority to SU1812547ApriorityCriticalpatent/SU412640A1/ru
Application grantedgrantedCritical
Publication of SU412640A1publicationCriticalpatent/SU412640A1/ru