| Patents for T. W. Porter |
Patents 1 -
15
of 15
      |
| Number | Date | Patentee | Title | Type |
| 30,009 | Sep. 11, 1860 | J.W. Strange | Spring Dividers | calipers |
| 52,188 | Jan. 23, 1866 | J. Mutty | Improvement in feed-rollers to circular saws | tablesaw accessories |
| 103,925 | Jun. 07, 1870 | H.K. Porter | Improvement in saw-set | saw sets |
| 104,995 | Jul. 05, 1870 | H.K. Porter | Lathe Center | metal lathe accessories |
| 144,187 | Nov. 04, 1873 | A. Burnham | Improvement in machines for cutting the heads of fence-pickets | stick pointing machines |
| 236,695 | Jan. 18, 1881 | H.K. Porter | Bolt-cutter | |
| 271,595 | Feb. 06, 1883 | S.A. Bostwick | Pipe Wrench | pipe wrenches |
| 290,137 | Dec. 11, 1883 | E.W. Strange | Set-works for saw-mills | sawmill set works |
| 292,422 | Jan. 22, 1884 | J.B. Emery | Cutter-head | cutterheads |
| 295,490 | Mar. 18, 1884 | J.B. Emery | Rotary cutter | cutterheads |
| 324,378 | Aug. 18, 1885 | J.T. Hayden | Pipe Wrench | chain and strap wrenches |
| 326,342 | Sep. 15, 1885 | J.C. Smith | Adjustable Concentric Channeler | adjustable drill bits |
| 331,812 | Dec. 08, 1885 | J. Norris | Cushioned Nippers and Pliers For Glass Cutters' Use | pliers |
| 361,218 | Apr. 12, 1887 | B.F. Kent, J.M. Foster | Rotary kerf-spreader | safety guards |
| 391,488 | Oct. 23, 1888 | E. Smith | Surface Gage | surface gauges |
