| All Patents in class 470/75 |
Patents 1 -
15
of 41
      |
| Number | Date | Patentee | Title | Type |
| 20,168 | May 04, 1858 | R. Nuttall | Cutting Screws | taps and dies |
| 24,152 | May 24, 1859 | J. Kirkpatrick, R. Nuttall | Cutting Screws | cutting-off and centering machines |
| 56,840 | Jul. 31, 1866 | J. Wolfenden | Rest Holder for Turning Lathes | metal lathe accessories and attachments |
| 77,530 | May 05, 1868 | J.H. Richardson | Cutting Screws | screwcutting lathes |
| 79,971 | Jul. 14, 1868 | E. Gould | Improved screw-threading machine | |
| 106,458 | Aug. 16, 1870 | G. Blake | Machine for Cutting Shafts and Pipes and for Cutting Screw Threads | metalworking machines |
| 111,248 | Jan. 24, 1871 | S.W. Putnam, Jr. | Improvement in machines for cutting screw-threads on bolts | metal threading machines |
| 113,740 | Apr. 18, 1871 | J.M. Carpenter | Improved Machine for Cutting Screws | metal threading machines |
| 130,880 | Aug. 27, 1872 | W.F. Strong | Improvement in Bolt Cutters | bolt and rivet cutters |
| 166,716 | Aug. 17, 1875 | R.C. Nugent | Screw Cutting Dies | taps and dies |
| 175,579 | Apr. 04, 1876 | E.A. Stimson | Screw Cutting Dies | taps and dies |
| 180,869 | Aug. 08, 1876 | J. Thomson, E.E. Green | Devices for Cutting Screw Threads | tap and die holders |
| 250,459 | Dec. 06, 1881 | L.W. Stockwell | Machine for Threading Bolts | metal threading machines |
| 251,322 | Dec. 20, 1881 | J.A. Gilkerson, J. Vandenburgh | Screw-cutting machine | screw machines |
| 259,433 | Jun. 13, 1882 | L.W. Stockwell | Screw Threading Machine | metal threading machines |
