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| All Patents in class 318/372 | |||||
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| Number | Date | Patentee | Title | Type | |
| 96,332 | Nov. 02, 1869 | G. Little | Improvement in Electro-Magnetic Motors | electric motors | |
| 228,888 | Jun. 15, 1880 | W.W. Griscom | Regulating Electro-Magnetic Motors | motor regulators | |
| 1,084,590 | Jan. 13, 1914 | H.L. Zabriskie | Electric motor | ||
| 1,823,555 | Sep. 15, 1931 | J.M. Naul | Electric phonograph motor | ||