| All Patents in class 408/102 |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 99,495 | Feb. 01, 1870 | G.C. Taft | Improved machine for drilling metals | horizontal drilling machines |
| 124,681 | Mar. 19, 1872 | L. Hillebrand | Improvement in Hand Drills | drill presses |
| 144,618 | Nov. 18, 1873 | F. Jonas | Hub-Boring Machine | wheelwright |
| 317,336 | May 05, 1885 | J.M. Glenn | Drill | drill presses |
| 549,661 | Nov. 12, 1895 | A.A. Smith | Ratchet-drill | rail drilling machines |
| 782,221 | Feb. 14, 1905 | P.J. Creeden | Auger-Bit | auger bits |
| 996,612 | Jul. 04, 1911 | J.W. Caldwell | Auger-Bit | auger bits |
| 1,403,366 | Jan. 10, 1922 | W.A. Whitney | Screw Punch | metal punching machines |
| 1,797,361 | Mar. 24, 1931 | B.E. Bark, C.M. Park | Attachment for power drills | handheld power tool accessories |
