| Patents for T. W. Porter |
Patents 1 -
9
of 9
      |
| Number | Title | Classification(s) |
| 30,009 | Spring Dividers | 33/558.07 |
| 104,995 | Lathe Center | 184/109, 82/150 |
| 218,844 | Improvement in mechanical movements | 74/45 |
| 271,595 | Pipe Wrench | 81/185.2, 81/186, 81/95 |
| 324,378 | Pipe Wrench | 81/64, 81/90.4 |
| 326,342 | Adjustable Concentric Channeler | 408/147, 408/190, 408/192, 408/202 |
| 331,812 | Cushioned Nippers and Pliers For Glass Cutters' Use | 606/207, 81/421, 81/423 |
| 391,488 | Surface Gage | 33/32.2 |
| 467,067 | Combination die-stock and reamer | 408/215, 408/224, 408/233, 82/128 |
