| All Patents in class 72/437 |
Patents 31 -
44
of 44
      |
| Number | Date | Patentee | Title | Type |
| 605,544 | Jun. 14, 1898 | R.J. Good | Drop Hammer | drop hammers |
| 772,135 | Oct. 11, 1904 | J. Dodge | Press for Forging, Shaping or Punching Metals | forging presses |
| 831,912 | Sep. 25, 1906 | G.H. Wadsworth | Power Hammer | power hammers |
| 838,233 | Dec. 11, 1906 | R. Bauer | Power-hammer | drop hammers |
| 862,391 | Aug. 06, 1907 | H.H. Hamlett | Power Press | forging presses |
| 877,315 | Jan. 21, 1908 | W. Fehr | Metal Swaging Machine | metal swaging machines |
| 985,623 | Feb. 28, 1911 | W.J. Murphy | Power Stamping Machine | stamping presses |
| 997,340 | Jul. 11, 1911 | J.M. Taylor, W.S. Taylor | Ringer | nose ring tools |
| 1,042,961 | Oct. 29, 1912 | E.M. Patten | Trip Hammer | trip and helve hammers |
| 1,221,421 | Apr. 03, 1917 | G.F. Crosiar | Power Hammer | |
| 1,246,182 | Nov. 13, 1917 | H. Terhune | Board Drop Hammer | drop hammers |
| 1,263,267 | Apr. 16, 1918 | W. Masillan | Power Hammer | power hammers |
| 1,303,792 | May 13, 1919 | S. Hamilton | Hammer | foot operated hammers |
| 2,263,680 | Nov. 25, 1941 | W.H. Fitzgerald, R.P. Fitzgerald | Drop hammer | drop hammers |
