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| Patents for Empire Machine Works | |||||
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| Number | Date | Patentee | Title | Type | |
| 195,555 | Sep. 25, 1877 | O. Allen | Spoke-polishing lathe | wheelwright | |
| 230,983 | Aug. 10, 1880 | O. Allen | Spoke-throating machine | wheelwright | |
| 248,124 | Oct. 11, 1881 | O. Allen | Rotary spoke-feeding machine | wheelwright | |
| 279,117 | Jun. 12, 1883 | O. Allen | Spoke tenoning and tapering machine | wheelwright | |
| 368,868 | Aug. 23, 1887 | O. Allen | Spoke-throating machine | wheelwright | |
| 910,634 | Jan. 26, 1909 | O. Allen | Felly-polishing machine | sanding machines | |