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| All Patents in class 310/188 | |||||
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| Number | Date | Patentee | Title | Type | |
| 315,179 | Apr. 07, 1885 | F.J. Sp | Electric Dynamic Motor | electric motors | |
| 315,180 | Apr. 07, 1885 | F.J. Sprague | Electro Dynamic Motor | electric motors | |
| 315,181 | Apr. 07, 1885 | F.J. Sprague | Electric Motor and Generator | electric motors | |
| 1,104,184 | Jul. 21, 1914 | V.A. Fynn | Dynamo-electric machine | electric motors | |
| 1,238,213 | Aug. 28, 1917 | H.R. Stuart | Electric generator and motor | electric generators | |