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| All Patents in class 310/216.037 | |||||
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| Number | Date | Patentee | Title | Type | |
| 390,415 | Oct. 02, 1888 | N. Tesla | Dynamo-Electric Machine or Motor | ||
| 403,487 | May 14, 1889 | F.A. Perret | Dynamo Electric Machine | electric motors | |