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 Г.С. ГольдманfiledCriticalГ.С. Гольдман
Priority to SU79540ApriorityCriticalpatent/SU25644A1/en
Application grantedgrantedCritical
Publication of SU25644A1publicationCriticalpatent/SU25644A1/en