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| Patents for Ralph Reed Spears | |||||
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| Number | Date | Patentee | Title | Type | |
| 475,163 | May 17, 1892 | R.R. Spears | Lathe for Turning Axles | carriage maker | |
| 530,861 | Dec. 11, 1894 | R.R. Spears | Turning Lathe for Axle Boxes | carriage maker | |
| 585,715 | Jul. 06, 1897 | R.R. Spears | Machine for Reaming Axle Boxes | carriage maker | |