All Patents in class 470/103 |
Patents 1 -
10
of 35
      |
Picture | Number | Date | Patentee | Title |
| 48,476 | Jun. 27, 1865 | L. Yale, Jr. | Apparatus for Reversing the Motion of Screw-Taps |
| 318,654 | May 26, 1885 | J.L. Rathbun | Tapping Device |
| 393,511 | Nov. 27, 1888 | S.D. Leland | Tap Driving Head |
| 558,055 | Apr. 14, 1896 | F.A. Errington | Tapping Attachment |
| 578,483 | Mar. 09, 1897 | F.A. Errington | Automatic Friction Tapping Attachment |
| 627,529 | Jun. 27, 1899 | G.E. Randles | Screw Machine |
| 631,080 | Aug. 15, 1899 | A.C. Kraft | Turret Lathe Tool Holder |
 | 687,407 | Nov. 26, 1901 | W. Runge | Drilling and tapping attachment for drill-presses |
 | 717,199 | Dec. 30, 1902 | G.H. Hollm | Tapping Fixture |
| 748,018 | Dec. 29, 1903 | C.J. Rowe | Work and Tool Holder |