| All Patents in class 72/467 |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| 146,212 | Jan. 06, 1874 | J. Swan | Improvement in Dies for Forming Auger-Bits | making drills and augers |
| 276,043 | Apr. 17, 1883 | G.G. Holley | Wringer-Plate for Twisting Augers | making drills and augers |
| 342,474 | May 25, 1886 | C.A. Svensson | Draw-bench | |
| 426,710 | Apr. 29, 1890 | J. Cahill | Die for Making Rock Drills | forging dies |
| 633,280 | Sep. 19, 1899 | J.R. Blakeslee | Die and Tool for Upsetting Tubes | forging dies |
| 1,395,617 | Nov. 01, 1921 | W. Stubbs | Apparatus for Twisting Metal Bars | metal twisting machines |
| 2,147,888 | Feb. 21, 1939 | F.W. Gaines, III | Holder for Wire Drawing Dies | forging dies |
| 3,170,735 | Feb. 23, 1965 | H.H. Coffin | Insulated die set | tool and die maker |
