| All Patents in class 72/412 |
Patents 1 -
15
of 15
      |
| Number | Date | Patentee | Title | Type |
| 801X | Nov. 04, 1807 | J. Beaumont, R. Wheatley | Mode of Making Stove Pipes | stove pipes |
| 1,553 | Apr. 15, 1840 | W. Field | Manner of Manufacturing Screw-Augers | making drills and augers |
| 56,602 | Jul. 24, 1866 | H.W. Pell | Improved Dies for Forming the Heads of Wrenches | wrench jaw components |
| 109,115 | Nov. 08, 1870 | J. Cunningham | Improvement in apparatus for fitting and setting axles | specialty woodworking machines |
| 138,617 | May 06, 1873 | H.M. Crippen | Swaging Machines | metal swaging machines |
| 414,030 | Oct. 29, 1889 | J.A. Facer | Steam Hammer for Forging Steel Wheels | steam hammers |
| 542,127 | Jul. 02, 1895 | W.H. Wood | Circular Flanging Machine | sheet metal flanging machines |
| 568,911 | Oct. 06, 1896 | W.C. Kroegher | Welding Machine | welding machines |
| 578,731 | Mar. 16, 1897 | F.L. Eberhardt, U. Eberhardt | Wrought Metal Gear Wheel and Mechanism for Making Same | industrial machine gearing |
| 672,552 | Apr. 23, 1901 | J.P. Harrington | Shaft-upsetting hammer | drop hammers |
| 877,315 | Jan. 21, 1908 | W. Fehr | Metal Swaging Machine | metal swaging machines |
| 1,121,675 | Dec. 22, 1914 | A.O. Slentz | Power slip-joint-forming machine | sheet metal flanging machines |
| 1,273,441 | Jul. 23, 1918 | E.A. Bardwell | Method or Process of Nurling | pin punches |
| 1,910,839 | May 23, 1933 | J. Jensen | Tool for punching, riveting, and like operations | riveting tools |
| 2,742,802 | Apr. 24, 1956 | H.A. Weyer, E.C. Clarke | Impact device | drop hammers |
