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 И.П. МисюровfiledCriticalИ.П. Мисюров
Priority to SU47ApriorityCriticalpatent/SU70878A1/en
Application grantedgrantedCritical
Publication of SU70878A1publicationCriticalpatent/SU70878A1/en