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| All Patents in class 310/225 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 269,605 | Dec. 26, 1882 | E. Thomson | Dynamo Electric Machine | |
 | 562,366 | Jun. 23, 1896 | E. Arnold | Electric motor and dynamo | |
| 924,992 | Jun. 15, 1909 | D.C. Jackson | Dynamo Electric Machine | ||
 | 1,004,437 | Sep. 26, 1911 | A. Kimble | Alternating-current motor | |
 | 1,115,352 | Oct. 27, 1914 | M. Walker | Dynamo-electric machine | |
 | 1,361,363 | Dec. 07, 1920 | J. Burke | Compensation windings | |
 | 1,870,302 | Aug. 09, 1932 | H. Weichsel | Alternating current motor | |