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| Patents Granted on 1817-02-28 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,744X | Feb. 28, 1817 | J. Wright | Spinning Wheel | railroad car wheels | |
| 2,745X | Feb. 28, 1817 | G. Drake | Machine for grinding and facing cards | grinding machines | |