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| All Patents in class 310/212 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 427,978 | May 13, 1890 | M. von Dolivo-Dobrowolsky | Alternating-current motor | |
| 677,308 | Jun. 25, 1901 | R. Eickemeyer | Alternating-current motor | ||
| 735,118 | Aug. 04, 1903 | W. Langdon-Davies, A. Soames | Polyphase Alternating Current Induction Motor | ||
 | 1,092,849 | Apr. 14, 1914 | J.D. Nies | Rotor construction for induction-motors | |
| 1,604,431 | Oct. 26, 1926 | H. Weichsel | Alternating-current motor | ||
 | 2,242,007 | May 13, 1941 | C.C. Leader | Dynamoelectric machine | |