| Patents Granted on 1857-04-21 |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| 17,072 | Apr. 21, 1857 | G. Bishop | Knife for cutting veneers | veneer machines |
| 17,099 | Apr. 21, 1857 | O.B. Judd | Saw Set | saw sets |
| 17,104 | Apr. 21, 1857 | G.H. Mallary | Shingle-machine | shingle machines |
| 17,106 | Apr. 21, 1857 | A. McKenzie | Combined Square, Miter Square, and Bevel | miter squares |
| 17,111 | Apr. 21, 1857 | M. Packard | Method of Adjusting and Holding the Knives of Spokeshaves | spokeshaves |
| 17,112 | Apr. 21, 1857 | H.F. Purmort | Sawing machine | circular sawmills |
| 17,118 | Apr. 21, 1857 | H. Strait | Plane Oiler with Sponge | plane oilers |
| 17,130 | Apr. 21, 1857 | H.L. McNish | Stave-machine | barrel making machines |
