| All Patents in class 279/71 |
Patents 1 -
15
of 32
      |
| Number | Date | Patentee | Title | Type |
| 8,315 | Aug. 26, 1851 | P.H. Niles | Adjustable Tool-Haft | tool handles |
| 24,152 | May 24, 1859 | J. Kirkpatrick, R. Nuttall | Cutting Screws | cutting-off and centering machines |
| 42,592 | May 03, 1864 | S.A. Morse | Improved collet | drill chucks |
| 55,363 | Jun. 05, 1866 | W. Reid | Improvement in machines for compressing the cylinders of casks upon their heads to form a tight barrel | barrel making machines |
| 81,500 | Aug. 25, 1868 | B. Haviland | Improvement in chucks | metal lathe chucks |
| 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 |
| 209,774 | Nov. 12, 1878 | O. Pederson | Screw Cutting Die | taps and dies |
| 250,459 | Dec. 06, 1881 | L.W. Stockwell | Machine for Threading Bolts | metal threading machines |
| 259,433 | Jun. 13, 1882 | L.W. Stockwell | Screw Threading Machine | metal threading machines |
| 274,281 | Mar. 20, 1883 | I. Culver | Screw Cutting Head | taps and dies |
| 293,868 | Feb. 19, 1884 | W. Hargrave | Screw Cutting Implement | tap and die holders |
| 417,659 | Dec. 17, 1889 | J.S. Bancroft | Means for Operating the Die Heads of Bolt Threading Machines | metal threading machines |
| 443,775 | Dec. 30, 1890 | C.L. Libby | Attachment for Turret Lathes | metal lathe accessories and attachments |
| 572,934 | Dec. 08, 1896 | W.J. Smith | Die Head for Screw Cutting | tap and die holders |
