| All Patents of Type: electric motors |
Patents 1 -
15
of 259
      |
| Number | Date | Patentee | Title | Type |
| 809 | Jun. 27, 1838 | N. Walkly | Improved mode of changing the poles of electro-magnets | electric motors |
| 910 | Sep. 08, 1838 | S. Stimpson | Improved apparatus for the application of electro-magnetism as a motive power | electric motors |
| 26,558 | Dec. 27, 1859 | G.W. Beardslee | Improved magneto-electric machine | electric motors |
| 96,332 | Nov. 02, 1869 | G. Little | Improvement in Electro-Magnetic Motors | electric motors |
| CA-686 | Nov. 05, 1870 | H. Wood | Improvement in electro magnetic machines and magnets | electric motors |
| CA-919 | Apr. 11, 1871 | A. Ross, M.H. Utley | Improvements on electro-magnetic motors | electric motors |
| 138,855 | May 13, 1873 | S.C. Carter | Electro-Magnetic Motors | electric motors |
| 171,087 | Dec. 14, 1875 | J. Bishop | Electro Magnetic Engines | electric motors |
| 228,763 | Jun. 15, 1880 | N.S. Keith | Dynamo-Electrical Machine | electric motors |
| 261,712 | Jul. 25, 1882 | W. Hochhausen | Commutator for Dynamo-Electric Machines | electric motors |
| 269,605 | Dec. 26, 1882 | E. Thomson | Dynamo Electric Machine | electric motors |
| 271,175 | Jan. 23, 1883 | S.S. Wheeler, C.G. Curtis, F.B. Crocker | Electric Motor | electric motors |
| 283,546 | Aug. 21, 1883 | E. Weston | Electro-magnetic motor | electric motors |
| 289,197 | Nov. 27, 1883 | E. Weston | Safety Cut-Out for Electric Magnetic Motors | electric motors |
| 293,556 | Feb. 12, 1884 | W. Bradbury | Electric Motor | electric motors |
