| All Patents in class 408/210 |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 2,642X | Jul. 17, 1816 | E. L'Hommedieu | Single twist screw auger | auger bits |
| 8,350X | Aug. 08, 1834 | N.C. Sanford | Wood auger | auger bits |
| 8,896X | Jun. 15, 1835 | W. Jones | Hollow Auger Bit | hollow bits |
| 3,899 | Jan. 31, 1845 | W.N. Clark | Single-Twist Auger, Gimlet, &c. | auger bits |
| 5,036 | Mar. 27, 1847 | A. Newton, L.B. Smith, E. Sanford | Wood auger | auger bits |
| 26,613 | Dec. 27, 1859 | N.B. Phelps | Auger | auger bits |
| 324,763 | Aug. 18, 1885 | L.M. Foster | Boring-Bit or Auger | auger bits |
| 770,480 | Sep. 20, 1904 | G.A. Stanger | Auger-Bit | auger bits |
| 1,105,535 | Jul. 28, 1914 | J.O. Roberts | Screw Extractor | screw extractors |
