| All Patents in class 408/199 |
Patents 1 -
10
of 28
      |
| Picture | Number | Date | Patentee | Title |
 | 3,181 | Jul. 20, 1843 | R. French | Single Lip Auger Bit & Means of Making |
 | 38,633 | May 19, 1863 | B. Sanderson | Bit or boring tool |
 | 54,825 | May 15, 1866 | G.W. Wait | Improvement in Tools for Making Spiles |
 | 107,700 | Sep. 27, 1870 | P. McCormick | Improvement in Washer-Cutters |
 | 115,211 | May 23, 1871 | W.A. Ives | Improvement in Bung Borers |
 | 123,246 | Jan. 30, 1872 | W.H. Dodge | Improvement in Countersinks |
| | 123,604 | Feb. 13, 1872 | B.F. Allen | Improvement in Cutting Tools |
 | 141,671 | Aug. 12, 1873 | H.S. Shephardson | Improvement in Gimlet-Handles |
 | 236,401 | Jan. 11, 1881 | D. Robertson, J.R. Adams | Detachable Lip for Augers |
 | 280,026 | Jun. 26, 1883 | B. Forstner | Shell Type Bit with Recessed Lip |
