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| All Patents in class 318/400.3 | |||||
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| Number | Date | Patentee | Title | Type | |
| 269,605 | Dec. 26, 1882 | E. Thomson | Dynamo Electric Machine | electric motors | |
| 4,603,283 | Jul. 29, 1986 | N.E. Oltendorf | Variable speed control for a brushless direct current motor | DC motors | |