| All Patents in class 72/450 |
Patents 1 -
15
of 80
      |
| Number | Date | Patentee | Title | Type |
| 9,266 | Sep. 14, 1852 | G.H. Richards | Forging Machine | forging presses |
| 13,434 | Aug. 14, 1855 | D. Noyes | Oliver | |
| 14,009 | Jan. 01, 1856 | N. Chapman | Chain of Power Presses | drop hammers |
| 49,593 | Aug. 22, 1865 | H. Shattuck | Improved Atmospheric Hammer | power hammers |
| 54,413 | May 01, 1866 | J. Robertson | Improved Atmospheric Hammers | power hammers |
| 55,813 | Jun. 26, 1866 | J.T. Bruen | Improvement in Hammers for Bending, Coupling &c. | foot operated hammers |
| 59,940 | Nov. 27, 1866 | J.G. Alleyne | Forging Apparatus | steam hammers |
| 60,973 | Jan. 01, 1867 | H. Waters | Metal Punch | metal punching machines |
| 64,567 | May 07, 1867 | T.F. Preston | Power Hammer | power hammers |
| 66,222 | Jul. 02, 1867 | A. Sharp, A. Cunningham | Power Hammer | power hammers |
| 71,823 | Dec. 03, 1867 | B. Walker | Forge Hammer | power hammers |
| 78,230 | May 26, 1868 | J. Palmer | Elliptic Spring | forging dies |
| 107,415 | Sep. 13, 1870 | W. Sleeper | Improvement in Compound Machines for Shearing, Punching, Upsetting and Bending Metal | tire setters |
| 146,771 | Jan. 27, 1874 | C.F. Mock | Machines for Bending Plow-Clevises, Stirrups, &c. | sheet metal bending machines |
| 184,248 | Nov. 14, 1876 | C. Lanz | Machines for Forming Strap Hinges | sheet metal bending machines |
