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. Кол вкин, В. С. Писаренко, В. Д. СенюковfiledCriticalБ. М. Кол вкин
Priority to SU1815217ApriorityCriticalpatent/SU415134A2/ru
Application grantedgrantedCritical
Publication of SU415134A1publicationCriticalpatent/SU415134A1/ru
Publication of SU415134A2publicationCriticalpatent/SU415134A2/ru