| Patents for Charles Hall |
Patents 1 -
11
of 11
      |
| Number | Title | Classification(s) |
| 61,420 | Tool Holder for Planing Machines | 409/346 |
| 86,534 | Improvement in Screw-Wrench | 81/148, 81/156 |
| 223,094 | Improvement in dogs for saw-mill head-blocks | 269/54.1 |
| 317,642 | Bolt-machine | 470/141 |
| 516,485 | Pipe Wrench | 81/109, 81/170 |
| CA-45,993 | Pipe-Wrench | |
| 521,312 | Wrench For Pipes, Rods, etc. | 81/109, 81/175 |
| 523,810 | Pipe Wrench | 81/109, 81/170 |
| 527,200 | Clamps Adapted to Ornamental and Polished Pipes | 269/128, 269/2, 81/185.1 |
| 533,295 | Pipe Wrench | 81/109, 81/180.1 |
| 586,738 | Screw Wrench | 81/109 |
