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 filedfiledCritical
Priority to SU1706680ApriorityCriticalpatent/SU411659A1/ru
Application grantedgrantedCritical
Publication of SU411659A1publicationCriticalpatent/SU411659A1/ru
Perfectionnements apportés aux systèmes à action brusque destinés principalement aux interrupteurs, contacteurs ou inverseurs unipolaires et multipolaires à ruptures doubles