| All Patents of Type: taps and dies |
Patents 1 -
15
of 62
      |
| Number | Date | Patentee | Title | Type |
| 5,103 | May 08, 1847 | P.W. Gates | Screw Cutting Die | taps and dies |
| 9,537 | Jan. 11, 1853 | A. Mayer | Arrangement of Screw-Cutting Dies | taps and dies |
| 54,096 | Apr. 24, 1866 | B.F. Bee | Improved screw-tap | taps and dies |
| GB-186,901,263 | Apr. 24, 1869 | A. Muir | Improvements in stocks and dies for screwing bolts and other articles | taps and dies |
| 114,935 | May 16, 1871 | G.H. Fox | Improvement in screw-taps | taps and dies |
| 115,291 | May 30, 1871 | L.R. Faught | Improvement in die-stocks for cutting screws | taps and dies |
| 164,481 | Jun. 15, 1875 | V.J. Reece | Improvement in screw-cutting dies | taps and dies |
| 168,349 | Oct. 05, 1875 | J.C. Sherman | Improvement in screw-cutting dies | taps and dies |
| 173,780 | Feb. 22, 1876 | J.J. Grant | Improvement in screw-cutting dies | taps and dies |
| 186,890 | Jan. 30, 1877 | A.J. Smart | Improvement in screw-cutting dies | taps and dies |
| 198,945 | Jan. 08, 1878 | J.M. Johnson | Improvement in collapsible screw-taps | taps and dies |
| 204,028 | May 21, 1878 | F.N. Gardner, N. Sawyer, J.J. Grant | Improvement in screw-cutting dies | taps and dies |
| 253,996 | Feb. 21, 1882 | W.D. Forbes | Screw-cutting die | taps and dies |
| 279,360 | Jun. 12, 1883 | J.W. Douglas | Combined Drill or Reamer, Tap and Socket | taps and dies |
| 303,060 | Aug. 05, 1884 | A.J. Smart | Screw Cutting Die | taps and dies |
