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| Patents Granted on 1857-10-27 | |||||
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| Number | Date | Patentee | Title | Type | |
| 18,509 | Oct. 27, 1857 | G.F. Butterfield, D. Lovejoy | Grinding and polishing metal | cutter grinding | |
| 18,512 | Oct. 27, 1857 | S. Marshall | Shingle-machine | shingle machines | |
| 18,521 | Oct. 27, 1857 | C.B. Rogers | Device for reversing the chisel in mortising-machines | mortising machines | |
| 18,526 | Oct. 27, 1857 | E.G. Allen | Steam-pressure gage | steam pressure gauges | |
| 18,530 | Oct. 27, 1857 | N. Whitehall | Improvement in Cultivators | cultivators and tillers | |