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 Д.А. Лерибас, Г.В. ШиллерfiledCriticalД.А. Лерибас
Priority to SU78512ApriorityCriticalpatent/SU28279A1/en
Application grantedgrantedCritical
Publication of SU28279A1publicationCriticalpatent/SU28279A1/en