| Patents Granted on 1864-04-__ |
Patents 1 -
15
of 41
      |
| Number | Date | Patentee | Title | Type |
| CS-237 | Apr. 02, 1864 | M.L. Parry | Steam Condenser | |
| XC-1,667 | Apr. 04, 1864 | E. Leonard | Improved sawing machine for the cross cutting of timber | |
| 42,200 | Apr. 05, 1864 | H. Law | Machine for cutting paper | |
| 42,201 | Apr. 05, 1864 | A.B. Lawther | Improement in Clamp Milling-Machines | metalworking machine vises |
| 42,203 | Apr. 05, 1864 | R.H. Lecky | Traction Wheel | steam carriages |
| 42,213 | Apr. 05, 1864 | J. Molyneux | Improvement in apparatus for forcing oil from wells | oil well pumps |
| 42,216 | Apr. 05, 1864 | W.T. Nicholson | Improvement in File Cutting Machines | tool making machines |
| 42,217 | Apr. 05, 1864 | W.T. Nicholson | Improvement in File Cutting Machines | tool making machines |
| 42,222 | Apr. 05, 1864 | A. Perrin | Improved Planking Screw | |
| 42,230 | Apr. 05, 1864 | G.A. Shelley | Patent Combination Try Square & Bevel | bevels |
| 42,236 | Apr. 05, 1864 | A.P. Stephens | Improvement in vises | bench vises |
| 42,239 | Apr. 05, 1864 | A. Leigh, C.R. Thorn | Improved Screw-Wrench | ratchet wrenches |
| 42,244 | Apr. 05, 1864 | P. Welch | Improvement in machines for sawing headings for barrels | cooper |
| 42,246 | Apr. 05, 1864 | O.A. White, I.W. Bostwick | Improvement in sawing machines | drag saws |
| 42,250 | Apr. 05, 1864 | L.D. Wynkoop | Improvement in turning-lathes | wood lathes |
