| Patents for Nicholson File Co. |
Patents 1 -
15
of 18
      |
| Number | Title | Classification(s) |
| 42,216 | Improvement in File Cutting Machines | 76/16, 76/22 |
| 42,217 | Improvement in File Cutting Machines | 76/20 |
| 44,443 | Improved File for Dressing Metal | 407/29.1, 76/24.1 |
| 45,850 | Improved Machine for Forging File Blanks | 72/372, 72/443, 76/5.1 |
| 58,025 | Improvement in Files | 407/29.13 |
| 78,681 | Improved Machine for Cutting Files | 76/15, 76/22 |
| 94,503 | Improvement in Rasps | 407/29.1 |
| 177,070 | Improvement in Files | 407/29.1, 76/24.1 |
| 177,071 | Machines for Stripping File-Blanks | 29/77 |
| 177,072 | Machines for Stripping File-Blanks | 29/77 |
| 177,073 | Machines for Stripping File-Blanks | 29/77 |
| 177,074 | Machines for Stripping File-Blanks | 29/77 |
| 177,075 | Machines for Cutting Files | 76/23 |
| 191,811 | Improvement in File Holders | 206/509, 407/29.15 |
| 198,668 | Improvement in Butchers' Steels | 76/84, D8/90 |
