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| Patents Granted on 1857-04-14 | |||||
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| Number | Date | Patentee | Title | Type | |
| RE448 | Apr. 14, 1857 | J. Bryant | Improved Carpenter's Gage | marking gauges | |
| 17,017 | Apr. 14, 1857 | J. Bosenbury | Boring-machine | portable timber mortisers | |
| 17,023 | Apr. 14, 1857 | T.A. Chandler | Pendulum Level or Inclinometer | inclinometers | |
| 17,026 | Apr. 14, 1857 | J. Creager | Machine for sawing shingles | shingle machines | |
| 17,038 | Apr. 14, 1857 | A. Hall | Expansive bit | adjustable drill bits | |
| 17,061 | Apr. 14, 1857 | W.L. Williams | Machine for splitting wood | firewood machines | |