И. Ф. Кравчук, В. Ф. Путанкин и В. А. Зимин ВГ? • '. i .:- .,
J-••..•........:,,,,
I ::^'-:' '•»• Ii
irA^K\.::^;Y..j;| ^ ' I
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. Ф. Кравчук, В. Ф. Путанкин и В. А. Зимин ВГ? • '. i .:- .,, J-••..•........:,,,,, I ::^'-:' '•»• Ii, irA^K\.::^;Y..j;| ^ ' IfiledCriticalИ. Ф. Кравчук, В. Ф. Путанкин и В. А. Зимин ВГ? • '. i .:- .,
Priority to SU772449110ApriorityCriticalpatent/SU644556A2/ru
Application grantedgrantedCritical
Publication of SU644556A2publicationCriticalpatent/SU644556A2/ru