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| All Patents in class 55/471 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 1,750,446 | Mar. 11, 1930 | J.D. Wallace, C.H. Landis | Dynamo-electric machine | |
 | 2,381,914 | Aug. 14, 1945 | J. Leflar, V.L. Darnell | Motor housing | |