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| Patents for Emma Lyford | |||||
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| Number | Date | Patentee | Title | Type | |
| 706,665 | Aug. 12, 1902 | W.T. Johnson | Engine Lathe | metal lathes | |
| 717,605 | Jan. 06, 1903 | W. Oesterlein | Cutter and tool grinder | tool grinders | |