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| Patents for Thos. S. Sprague | |||||
| Picture | Number | Date | Patentee | Title | |
![]() | 97,328 | Nov. 30, 1869 | H. VanBuskirk | Centerwheel Plow Plane | |
![]() | 130,879 | Aug. 27, 1872 | O. Stoddard | Improvement in Compasses | |