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.Е. РыбинскийfiledCriticalА.Е. Рыбинский
Priority to SU70126ApriorityCriticalpatent/SU23507A1/en
Application grantedgrantedCritical
Publication of SU23507A1publicationCriticalpatent/SU23507A1/en