| All Patents in class 310/197 |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 433,700 | Aug. 05, 1890 | N. Tesla | Alternating-current electro-magnetic motor | |
| 848,719 | Apr. 02, 1907 | E. Bretch | Alternating-current motor | motor armatures |
| 1,108,087 | Aug. 18, 1914 | E.M. Tornmin | Automobile generator for operating headlights | electrical devices |
| 1,227,400 | May 22, 1917 | M. von Dolivo-Dobrowolsky | Electric motor | synchronous motors |
| 1,537,737 | May 12, 1925 | S.R. Bergman | Alternating-current commutator motor | repulsion motors |
| 2,685,667 | Aug. 03, 1954 | S.S. Brown | Electric motor and method of operation | electric motors |
