| All Patents in class 408/206 |
Patents 1 -
15
of 15
      |
| Number | Date | Patentee | Title | Type |
| 6,391 | Apr. 24, 1849 | L. Brown | Cutting out cylinders for bobbins, &c. | specialty woodworking machines |
| 8,422 | Oct. 14, 1851 | G. Hammer | Machine for Cutting Cork | cork making machines |
| 43,673 | Aug. 02, 1864 | R. Dudgeon | Drill | drill bits |
| 53,722 | Apr. 03, 1866 | A. Wyckoff | Pump-Log Hollow Auger | hollow bits |
| 61,121 | Jan. 08, 1867 | N. Thompson | Improvement in boring-tools | drilling and boring |
| 72,436 | Dec. 17, 1867 | A. Wippo | Auger & Rounder for Installing Casters | auger bits |
| 211,952 | Feb. 04, 1879 | J.G. Baker | Improvement in machines for sawing out segments of wood | specialty woodworking machines |
| 302,941 | Aug. 05, 1884 | P. Robarge | Device for Cutting Plugs or Dowel Pins | hollow bits |
| 900,044 | Sep. 29, 1908 | N.E. Swanson | Hollow Auger | hollow bits |
| 958,112 | May 17, 1910 | H.B. Maschmeier, T.S. Halliwell | Boring-Tool | hollow bits |
| 1,855,873 | Apr. 26, 1932 | W.H. Shortell | Cutting tool | hollow bits |
| 2,794,469 | Jun. 04, 1957 | W.H. Shortell | Hole saws | hollow bits |
| 4,713,990 | Dec. 22, 1987 | D.C. Poling | Bolt extracting tool | stud extractors |
| 5,842,820 | Dec. 01, 1998 | L.G. Lee, R.C. Lee | Cutter for use in forming dowels, plugs, and tenons | |
| 6,099,214 | Aug. 08, 2000 | R.C. Lee, L.G. Lee | Cutter for use in forming dowels, plugs, and tenons | |
