System of Electrical Transmission of Power 121 0 Download here USA051 - US487796 Print Rate this article: No rating No.USA51Patent487,796Year1892CountryUnited States of AmericaDate of ApplicationDecember 13, 1892Patent TitleSystem of Electrical Transmission of Power Documents to download USA051 - US487796 (.pdf, 268.14 KB) - 140 download(s)