| All Patents in class 72/95 |
Patents 1 -
12
of 12
      |
| Number | Date | Patentee | Title | Type |
| 8,196X | May 13, 1834 | O. Snow | Auger twisting machine | tool making machines |
| 851 | Jul. 24, 1838 | R.N. Watrous, E. L'Hommedieu | Machinery for manufacturing double-twist screw-augers | tool making machines |
| 12,583 | Mar. 27, 1855 | R. Cook | Machine for Turning the Lips of Augers | making drills and augers |
| 54,893 | May 22, 1866 | R.H. Boyd, W.W. Grier | Improved Machine for Making Auger Bits | tool making machines |
| RE2,712 | Aug. 06, 1867 | R.H. Boyd, W.W. Grier | Improved Machine for Making Augers | making drills and augers |
| 201,530 | Mar. 19, 1878 | C.F. Jacobson | Machine for Making Twist Drills | making drills and augers |
| 245,741 | Aug. 16, 1881 | T.W. Webb, P.D. Nicols | Machine for Twisting Drill Blanks | making drills and augers |
| 331,904 | Dec. 08, 1885 | S. Moore | Machine for Making Twist Drills | making drills and augers |
| 426,439 | Apr. 29, 1890 | J.F. Fife | Machine for Corrugating Tubing | tube corrugating machines |
| 434,060 | Aug. 12, 1890 | C.D. Wainwright, J.S. Hansen | Machine for Corrugating Tubes | tube corrugating machines |
| 3,043,169 | Jul. 10, 1962 | W.B. McCardell | Apparatus for Pressure Forming Toothed Elements | gear making machines |
| 3,191,415 | Jun. 29, 1965 | C.L. Sporck | Metal Working | tube making machines |
