| All Patents in class 408/199 |
Patents 1 -
15
of 27
      |
| Number | Date | Patentee | Title | Type |
| 3,181 | Jul. 20, 1843 | R. French | Single Lip Auger Bit & Means of Making | making drills and augers |
| 38,633 | May 19, 1863 | B. Sanderson | Bit or boring tool | spoon bits |
| 54,825 | May 15, 1866 | G.W. Wait | Improvement in Tools for Making Spiles | drill accessories |
| 107,700 | Sep. 27, 1870 | P. McCormick | Improvement in Washer-Cutters | 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 | countersinks |
| 123,604 | Feb. 13, 1872 | B.F. Allen | Improvement in Cutting Tools | milling machine tools |
| 141,671 | Aug. 12, 1873 | H.S. Shephardson | Improvement in Gimlet-Handles | gimlets |
| 236,401 | Jan. 11, 1881 | D. Robertson, J.R. Adams | Detachable Lip for Augers | auger bits |
| 280,026 | Jun. 26, 1883 | B. Forstner | Shell Type Bit with Recessed Lip | drill bits |
| 336,762 | Feb. 23, 1886 | O. Smith | Tool for drill presses | countersinks |
| 371,387 | Oct. 11, 1887 | A.U. Smith | Countersink | countersinks |
| 385,791 | Jul. 10, 1888 | F.B. Carpenter | Combined Bit, Countersink, and Screw-Driver | combination tools |
| 458,087 | Aug. 18, 1891 | W. Wilkinson | Corkscrew | pocket and protected cork extractors |
| 597,750 | Jan. 25, 1898 | S. Smith | Bell Hangers Twist Drill | twist drill bits |
