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| All Patents in class 310/148 | |||||
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| Number | Date | Patentee | Title | Type | |
| 294,165 | Feb. 26, 1884 | C.J. Van Depoele | Motor for Electric Regulators | motor regulators | |
| 350,954 | Oct. 19, 1886 | N. Tesla | Regulator for Dynamo-Electric Machines | ||