| Patents for Henry K. Porter |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 72,327 | Dec. 17, 1867 | H.K. Porter, T.W. Porter | Improvement in vises | bench vises |
| 103,925 | Jun. 07, 1870 | H.K. Porter | Improvement in saw-set | saw sets |
| 103,926 | Jun. 07, 1870 | H.K. Porter | Improvement in calipers | calipers |
| 104,995 | Jul. 05, 1870 | H.K. Porter | Lathe Center | metal lathe accessories and attachments |
| RE5,653 | Nov. 11, 1873 | H.K. Porter, T.W. Porter | Improvement in vises | bench vises |
| 226,190 | Apr. 06, 1880 | H.K. Porter | Bolt-cutter | bolt cutters |
| 236,695 | Jan. 18, 1881 | H.K. Porter | Bolt-cutter | bolt cutters |
| 484,670 | Oct. 18, 1892 | H.K. Porter | Bolt-clipper | bolt cutters |
| 909,663 | Jan. 12, 1909 | H.K. Porter | Bolt Clipper | bolt and rivet cutters |
