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 Е.А. ШавгулидзеfiledCriticalЕ.А. Шавгулидзе
Priority to SU57218ApriorityCriticalpatent/SU18863A1/en
Application grantedgrantedCritical
Publication of SU18863A1publicationCriticalpatent/SU18863A1/en