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.А. АбиндерfiledCriticalА.А. Абиндер
Priority to SU141775ApriorityCriticalpatent/SU39394A1/ru
Application grantedgrantedCritical
Publication of SU39394A1publicationCriticalpatent/SU39394A1/ru