| All Patents in class 310/236 |
Patents 1 -
15
of 24
      |
| Number | Date | Patentee | Title | Type |
| 171,087 | Dec. 14, 1875 | J. Bishop | Electro Magnetic Engines | electric motors |
| 260,111 | Jun. 27, 1882 | T.J. McTighe, J.J. McTighe | Commutator for dynamo electric machines | motor commutators |
| 261,712 | Jul. 25, 1882 | W. Hochhausen | Commutator for Dynamo-Electric Machines | electric motors |
| 271,947 | Feb. 06, 1883 | E. Thomson | Commutator for Dynamo Machines | motor commutators |
| 313,489 | Mar. 10, 1885 | W.P. Freeman | Commutator for dynamo electric machine | motor commutators |
| 392,490 | Nov. 06, 1888 | C.E. Billings | Commutator-bar for dynamo-electric machines | motor commutators |
| 393,266 | Nov. 20, 1888 | A.L. Riker | Electric motor and dynamo | electric motor making |
| 394,819 | Dec. 18, 1888 | C.S. Bradley | Dynamo-electric machinery | motor armatures |
| 454,336 | Jun. 16, 1891 | R. Eickemeyer | Dynamo-electric machine | |
| 553,557 | Jan. 28, 1896 | R.M. Gardner | Armature for Electric Machines | motor armatures |
| 653,945 | Jul. 17, 1900 | J. Burke | Commutator-segment | motor commutators |
| 686,856 | Nov. 19, 1901 | W. Langdon-Davies, A. Soames | Dynamo Electric Machine | electric motors |
| 718,518 | Jan. 13, 1903 | E.S. Pillsbury | Electric motor | electric motors |
| 745,336 | Dec. 01, 1903 | W.L. Emmet | Commutator-bar | electric motors |
| 771,858 | Oct. 11, 1904 | J.H. Brown | Commutator | electric motors |
