| All Patents in class 408/214 |
Patents 31 -
45
of 65
      |
| Number | Date | Patentee | Title | Type |
| 115,211 | May 23, 1871 | W.A. Ives | Improvement in Bung Borers | |
| 115,541 | May 30, 1871 | J. Swan | Improvement in Augers | auger bits |
| 158,090 | Dec. 22, 1874 | C.F. King | Auger with Removable Tip | auger bits |
| 172,377 | Jan. 18, 1876 | B.F. Bee | Improvement in Gimlets | gimlets |
| 177,742 | May 23, 1876 | A.M. Norton | Improvement in Bung-Borers | tapered reamers |
| 215,744 | May 27, 1879 | W. Heyn | Auger Bit with Detachable Tip | auger bits |
| 216,023 | Jun. 03, 1879 | R.T. Crane | Improvement in Boring and Reaming Tools | tapered reamers |
| 248,854 | Nov. 01, 1881 | P.A. Gladwin | Auger Bit with Cross-Channel Lead Screw | auger bits |
| 285,440 | Sep. 25, 1883 | J. Swan | Auger | drill bits |
| 333,170 | Dec. 29, 1885 | G.F. Stearns | Method of auger manufacture | auger bits |
| 344,868 | Jul. 06, 1886 | M. Rothschild | Mortising machine | portable timber mortisers |
| 364,153 | May 31, 1887 | C. Whitehouse | Auger Bit | auger bits |
| 430,344 | Jun. 17, 1890 | F.I. Hoefle | Single Twist Auger Bit | auger bits |
| 458,640 | Sep. 01, 1891 | E.C. Phillips | Bit With Replaceable Wood-Screw Lead | drill bits |
| 461,897 | Oct. 27, 1891 | E. Ford | Single-Twist Auger Bit | auger bits |
