| All Patents in class 72/437 |
Patents 1 -
15
of 44
      |
| Number | Date | Patentee | Title | Type |
| 736X | Feb. 25, 1807 | J. Fox, Jr. | Oliver | blacksmith |
| 7,242 | Apr. 02, 1850 | D. Hicks | Attachment of the Forge-Hammer to its Helve | trip and helve hammers |
| 8,868 | Apr. 13, 1852 | S. Andrews | Drop-Punch | drop hammers |
| 9,941 | Aug. 16, 1853 | E.K. Root | Drop Hammer | drop hammers |
| 10,332 | Dec. 20, 1853 | J. Baxendale | Stamping Patterns on Rollers | metal engraving machines |
| 10,486 | Jan. 31, 1854 | P.L. Weimer | Steam Hammer | steam hammers |
| 17,634 | Jun. 23, 1857 | H. Pierce | Machine for Straightening Knife-Blades | forging dies |
| 22,589 | Jan. 11, 1859 | G.V. Wilson, C.V. Statler | Improvement in Foot Trip-Hammers | foot operated hammers |
| 30,080 | Sep. 18, 1860 | A. Morton | Trip Hammer | trip and helve hammers |
| 34,434 | Feb. 18, 1862 | R.S. Lawrence | Improvement in Forging Apparatus | drop hammers |
| 60,458 | Dec. 18, 1866 | I. Andrews, L. Andrews | Oliver | trip and helve hammers |
| 64,408 | May 07, 1867 | L.L. Crane | Improved Forging Machine | forging dies |
| 66,879 | Jul. 16, 1867 | L.H. Olmsted | Drop Hammer | drop hammers |
| 66,884 | Jul. 16, 1867 | J.C. Rhodes | Drop Hammer | drop hammers |
| 95,693 | Oct. 12, 1869 | E. Kaylor | Drop Hammer | drop hammers |
