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| All Patents in class 310/429 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 1,114,405 | Oct. 20, 1914 | C.H. Smoot | Dynamo-electric machine provided with commutating pole-pieces | |
| 1,651,061 | Nov. 29, 1927 | J.T. Janette | Motor construction | ||