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| Patents Granted on 1843-02-20 | |||||
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| Number | Date | Patentee | Title | Type | |
| XC-182 | Feb. 20, 1843 | A.H. Hough | Improvement upon a newly constructed suction and forcing pump | pumps | |
| 2,960 | Feb. 20, 1843 | W.B. Leonard | Cotton Press | cotton presses | |
| 2,961 | Feb. 20, 1843 | R.H. Springsteed | Metal Drill | drill presses | |
| 2,966 | Feb. 20, 1843 | J.C. Terry | Rack-Wrench | nut wrenches | |