| Patents for William T. Nicholson |
Patents 1 -
15
of 23
      |
| Number | Title | Classification(s) |
| 8,199 | Machinery for Cutting Files | 76/16, 76/20, 76/21 |
| 28,104 | Spirit Level | 33/381 |
| 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 |
| 130,361 | Improvement in Machines for Cutting Teeth on Cylinders | 76/15, 76/22 |
| 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 |
