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| Patents for Horatio Boothby | |||||
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| Number | Date | Patentee | Title | Type | |
| 134,742 | Jan. 14, 1873 | H.E. Forrest | Tool for Finishing Axle Blanks | axle lathes | |
| 137,769 | Apr. 15, 1873 | H.E. Forrest | Machines for Turning Carriage Axles | axle lathes | |