| Patents for Nicholson File Co. |
Patents 1 -
15
of 18
      |
| Number | Date | Patentee | Title | Type |
| 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 |
| 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 |
| 177,075 | May 09, 1876 | W.T. Nicholson | Machines for Cutting Files | file cutting machines |
| 191,811 | Jun. 12, 1877 | W.T. Nicholson | Improvement in File Holders | files |
| 198,668 | Dec. 25, 1877 | W.T. Nicholson | Improvement in Butchers' Steels | |
