| All Patents in class 310/269 |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| 336,636 | Feb. 23, 1886 | J.M. Léscuyer | Dynamo Electric Machine | motor commutators |
| 417,794 | Dec. 24, 1889 | N. Tesla, A. Schmid | Armature for electric machines | electric generators |
| 643,087 | Feb. 06, 1900 | D. Drawbaugh | Electric Generator for Sparking Apparatus of Gas Engines | magnetos |
| 928,037 | Jul. 13, 1909 | W.H. Frost | Dynamo-electric machine | motor armatures |
| 1,033,379 | Jul. 23, 1912 | J. Burke | Dynamo-electric machine | electric motors |
| 1,422,414 | Jul. 11, 1922 | J. Burke | Rotor spider | electric generators |
| 1,504,145 | Aug. 05, 1924 | G.M. Rothenberger | Dynamo-electric machine | motor armatures |
| 1,936,737 | Nov. 28, 1933 | E.K. Tingley | Adjustable air gap fly wheel type motor | electric motors |
