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| Patents for Lewis L. Tatum | |||||
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| Number | Date | Patentee | Title | Type | |
| 850,278 | Apr. 16, 1907 | L.L. Tatum | System of distribution | electric distribution systems | |
| 870,595 | Nov. 12, 1907 | L.L. Tatum | Controller | motor controls | |
| 870,596 | Nov. 12, 1907 | L.L. Tatum | Motor-controller | motor controls | |