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| Patents for Edison Electric Light Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 248,435 | Oct. 18, 1881 | T.A. Edison | Utilizing Electricity as Motive Power | DC motors | |
| 251,541 | Dec. 27, 1881 | T.A. Edison | Electric Magnetic Motor | motor controls | |