| Patents Granted on 1857-05-?? |
Patents 1 -
15
of 35
      |
| Number | Date | Patentee | Title | Type |
| NS-29 | May 02, 1857 | E.E. Tupper | Shingle machine | shingle machines |
| XC-728 | May 04, 1857 | A. Cant, J. Cant | New moveable scaffold | scaffolds |
| RE462 | May 05, 1857 | R.M. Hoe | Improvement in machinery for grinding and polishing metallic surfaces, particularly saw-plates | tool making machines |
| 17,187 | May 05, 1857 | W.N. Adams | Screw Cutting Machine | screw machines |
| 17,190 | May 05, 1857 | G. Bishop | Machine for cutting veneers | veneer machines |
| 17,219 | May 05, 1857 | D. Hodges | Adjustable bed and gage to regulate tenoning | tenoning machines |
| 17,222 | May 05, 1857 | M. Kaefer | Fly Wheel | woodworking machine mechanisms |
| 17,226 | May 05, 1857 | D. Methven, A.A. Methven | Self-reversing feed-motion for sawing-mills | sawmills |
| 17,229 | May 05, 1857 | C. Pinder | Wrench | wedge adjust wrenches |
| 17,230 | May 05, 1857 | R. Porter | Improvement in the buckets of automatic grain-weighing machines | grain scales |
| 17,236 | May 05, 1857 | W. Sellers, C. Sellers | Improvement in couplings for shafting | industrial machine shaft couplings |
| 17,249 | May 05, 1857 | H. Mellish | Cutter for turning cylindrical wooden boxes | box making machines |
| XC-734 | May 12, 1857 | U. Haskins | New and improved rotary steam engine | rotary steam engines |
| 17,254 | May 12, 1857 | W. Bevard | Rotary shingle-cutter | shingle machines |
| 17,263 | May 12, 1857 | T. Cook | Machine for cutting match-splints | match making machines |
