| All Patents in class 408/200 |
Patents 1 -
10
of 25
      |
| Picture | Number | Date | Patentee | Title |
 | 12,551 | Mar. 20, 1855 | I.W. Hoagland | Auger Bit With Detachable Cutting Lip |
 | 21,961 | Nov. 02, 1858 | W.O. Hickok | Die for Cutting Wooden Screws |
 | 82,374 | Sep. 22, 1868 | H. Asbury, J.G. Baker | Improvement in Bung-Borers |
 | 141,511 | Aug. 05, 1873 | L. Littlejohn | Bung Reamer and Countersink |
| | 209,459 | Oct. 29, 1878 | H.P. Case | Chuck |
 | 230,603 | Aug. 03, 1880 | D.F. Barber | Countersink |
 | 311,549 | Feb. 03, 1885 | F.E. Wells | Die-stock |
| | 319,852 | Jun. 09, 1885 | C.C. Trout, J. Riddell | Reamer |
 | 413,316 | Oct. 22, 1889 | W.J. Dobson | Counterbore Auger Attachment |
 | 444,956 | Jan. 20, 1891 | M.H. Jones | Auger Bit with Detachable Tip |
