| Patents for William T. Nicholson |
Patents 1 -
15
of 23
      |
| Number | Date | Patentee | Title | Type |
| 8,199 | Jul. 01, 1851 | J. Crum | Machinery for Cutting Files | tool making machines |
| 28,104 | May 01, 1860 | W.T. Nicholson | Spirit Level | metallic levels |
| 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 |
| 44,443 | Sep. 27, 1864 | W.T. Nicholson | Improved File for Dressing Metal | files |
| 45,850 | Jan. 10, 1865 | W.T. Nicholson | Improved Machine for Forging File Blanks | tool making machines |
| 58,025 | Sep. 11, 1866 | W.T. Nicholson | Improvement in Files | files |
| 78,681 | Jun. 09, 1868 | W.T. Nicholson | Improved Machine for Cutting Files | tool making machines |
| 94,503 | Sep. 07, 1869 | W.T. Nicholson | Improvement in Rasps | files |
| 130,361 | Aug. 13, 1872 | G. Ames, W.T. Nicholson, S.B. Dean | Improvement in Machines for Cutting Teeth on Cylinders | file cutting machines |
| 177,070 | May 09, 1876 | W.T. Nicholson | Improvement in Files | files |
| 177,071 | May 09, 1876 | W.T. Nicholson | Machines for Stripping File-Blanks | files |
| 177,072 | May 09, 1876 | W.T. Nicholson | Machines for Stripping File-Blanks | making files |
| 177,073 | May 09, 1876 | W.T. Nicholson | Machines for Stripping File-Blanks | making files |
| 177,074 | May 09, 1876 | W.T. Nicholson | Machines for Stripping File-Blanks | making files |
