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| Patents Granted on 1864-02-16 | |||||
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| Number | Date | Patentee | Title | Type | |
| 41,590 | Feb. 16, 1864 | E.G. Allen | Improvement in metallic cartridges | cartridges | |
| 41,646 | Feb. 16, 1864 | D. Slate | Improved apparatus for grinding cutter-bits for rifling-machines | ||
| 41,660 | Feb. 16, 1864 | S. Adams | Improvement in grain-separators | corn and grain separators | |
| 41,667 | Feb. 16, 1864 | J. Case | Improvement in machines for sawing wood | drag saws | |