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| Patents Granted on 1854-02-21 | |||||
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| Number | Date | Patentee | Title | Type | |
| 10,538 | Feb. 21, 1854 | F.T. Andrews | Method of operating saws | reciprocating sawmills | |
| 10,548 | Feb. 21, 1854 | A.P. Hughes | Tool for dovetailing | dovetailing machines | |
| 10,553 | Feb. 21, 1854 | J.B. Smith | Machine for slitting clothes-pins | clothespin machines | |
| 10,556 | Feb. 21, 1854 | C.F. Packard | Improved machine for cutting laths | lath making machines | |