| All Patents in class 74/581 |
Patents 1 -
10
of 10
      |
| Number | Date | Patentee | Title | Type |
| 7,357 | May 14, 1850 | L. Bissell | Improvement in Connecting-Rods of Steam-Engines and Other Machinery | steam engine crank rods |
| 54,413 | May 01, 1866 | J. Robertson | Improved Atmospheric Hammers | power hammers |
| 230,611 | Aug. 03, 1880 | J.C. Butterfield | Stamp-mill | ore processing apparatus |
| 264,859 | Sep. 26, 1882 | J.C. Butterfield | Atmospheric hammer | drop hammers |
| 378,105 | Feb. 21, 1888 | F. Phillips | Dash-pot for steam-engines | steam dash pots |
| 487,692 | Dec. 06, 1892 | A. Beaudry | Power-hammer | drop hammers |
| 700,646 | May 20, 1902 | J. Hartness | Fluid Operating Device | turret lathes |
| 739,992 | Sep. 29, 1903 | G.T. Strite, F.F. Davidson | Yieldable Pitman for Power Hammers | power hammers |
| 1,298,741 | Apr. 01, 1919 | P.H. Leckinger | Riveting Machine or Hammer | trip and helve hammers |
| 1,927,096 | Sep. 19, 1933 | E.F. Meyering | Riveting Machine | rivet making machines |
