Regulator for Alternate Current Motors 144 0 Download here USA020 - US390820 Print Rate this article: No rating No.USA20Patent390,82Year1888CountryUnited States of AmericaDate of ApplicationOctober 9, 1888Patent TitleRegulator for Alternate Current Motors Documents to download USA020 - US390820 (.pdf, 244.56 KB) - 100 download(s)