| All Patents in class 76/102 |
Patents 1 -
15
of 22
      |
| Number | Date | Patentee | Title | Type |
| 8,491X | Nov. 11, 1834 | R. French | Making augers | tool making machines |
| 851 | Jul. 24, 1838 | R.N. Watrous, E. L'Hommedieu | Machinery for manufacturing double-twist screw-augers | tool making machines |
| 3,181 | Jul. 20, 1843 | R. French | Single Lip Auger Bit & Means of Making | making drills and augers |
| RE72 | Jul. 30, 1845 | E. L'Hommedieu | Improvement in machinery for manufacturing double-twist screw-augers | drill bits |
| 12,551 | Mar. 20, 1855 | I.W. Hoagland | Auger Bit With Detachable Cutting Lip | auger bits |
| 13,780 | Nov. 13, 1855 | R. Cook | Dies for Making Cook's Bits | making drills and augers |
| 14,561 | Apr. 01, 1856 | G.G. Griswold | Method of Manufacturing Augers | making drills and augers |
| 55,498 | Jun. 12, 1866 | R. Jennings | Improvement in Dies for Swaging the Ends of Auger Blanks | tool making machines |
| 61,208 | Jan. 15, 1867 | A.C. Kasson | Improvement in augers | auger bits |
| 68,012 | Aug. 20, 1867 | J. Swan | Manufacture of Single Twist Augers | making drills and augers |
| 80,027 | Jul. 14, 1868 | J. Swan | Improvement in the Manufacture of Auger-Bits | making drills and augers |
| 91,503 | Jun. 15, 1869 | C. Whitehouse | Improved Process for Making Augers and Boring-Bits | making drills and augers |
| 105,744 | Jul. 26, 1870 | I.H. Van Wie | Tapered Hollow Auger | hollow bits |
| 112,255 | Feb. 28, 1871 | W.A. Ives | Improvement in Methods of Forming Spur Lips of Auger Bits | |
| RE5,624 | Oct. 21, 1873 | J. Swan | Machine for Upsetting Cook's Auger Bits | making drills and augers |
