| All Patents in class 173/118 |
Patents 1 -
10
of 22
      |
| Picture | Number | Date | Patentee | Title |
 | RE86 | Sep. 10, 1846 | J. Nasmyth | Improvement in machinery or apparatus operated by steam for forging, stamping, and cutting iron and other substances |
| | 39,924 | Sep. 15, 1863 | B. Hotchkiss | Improved Atmosheric Trip-Hammer |
| | 49,593 | Aug. 22, 1865 | H. Shattuck | Improved Atmospheric Hammer |
| | 71,823 | Dec. 03, 1867 | B. Walker | Forge Hammer |
| | 78,867 | Jun. 16, 1868 | J. Duff | Drop Hammer |
 | 176,400 | Apr. 18, 1876 | J.C. Butterfield | Improvement in atmospheric hammers |
| | 265,655 | Oct. 10, 1882 | W.T. Browne | Rotary Hammer |
 | 368,384 | Aug. 16, 1887 | M. Deering | Power-hammer |
| | 526,606 | Sep. 25, 1894 | J. Bêché | Pneumatic Hammer |
| | 553,534 | Jan. 28, 1896 | A.E. Meissner | Reciprocating Drill |
