| All Patents in class 173/118 |
Patents 1 -
15
of 22
      |
| Number | Date | Patentee | Title | Type |
| RE86 | Sep. 10, 1846 | J. Nasmyth | Improvement in machinery or apparatus operated by steam for forging, stamping, and cutting iron and other substances | steam hammers |
| 39,924 | Sep. 15, 1863 | B. Hotchkiss | Improved Atmosheric Trip-Hammer | steam hammers |
| 49,593 | Aug. 22, 1865 | H. Shattuck | Improved Atmospheric Hammer | power hammers |
| 71,823 | Dec. 03, 1867 | B. Walker | Forge Hammer | power hammers |
| 78,867 | Jun. 16, 1868 | J. Duff | Drop Hammer | drop hammers |
| 176,400 | Apr. 18, 1876 | J.C. Butterfield | Improvement in atmospheric hammers | drop hammers |
| 265,655 | Oct. 10, 1882 | W.T. Browne | Rotary Hammer | rotary hammers |
| 368,384 | Aug. 16, 1887 | M. Deering | Power-hammer | drop hammers |
| 526,606 | Sep. 25, 1894 | J. Bêché | Pneumatic Hammer | power hammers |
| 553,534 | Jan. 28, 1896 | A.E. Meissner | Reciprocating Drill | stoneworking |
| 559,251 | Apr. 28, 1896 | J. Bêché | Pneumatic Hammer | power hammers |
| 639,538 | Dec. 19, 1899 | H.G. Dittbenner | Power-hammer | drop hammers |
| 655,028 | Jul. 31, 1900 | W. Sneller | Rotary Draw Block Hammer | rotary hammers |
| 716,019 | Dec. 16, 1902 | H. Feldhus | Power Hammer | trip and helve hammers |
| 1,024,026 | Apr. 23, 1912 | G.H. Rowe | Electromechanical device | impact chisels and drills |
