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 Б. М. ГейликманfiledCriticalБ. М. Гейликман
Priority to SU1034652ApriorityCriticalpatent/SU195847A1/ru
Application grantedgrantedCritical
Publication of SU195847A1publicationCriticalpatent/SU195847A1/ru