Armature for Electric Machines 193 0 Download here USA032 - US417794 Print Rate this article: No rating No.USA32Patent417,794Year1889CountryUnited States of AmericaDate of ApplicationDecember 24, 1889Patent TitleArmature for Electric Machines Documents to download USA032 - US417794 (.pdf, 150.73 KB) - 186 download(s)