| All Patents in class 173/115 |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 58,880 | Oct. 16, 1866 | J.P. Noyes | Drop Hammer | drop hammers |
| 71,823 | Dec. 03, 1867 | B. Walker | Forge Hammer | power hammers |
| 230,612 | Aug. 03, 1880 | C.M. Brown | Power-hammer | trip and helve hammers |
| 368,384 | Aug. 16, 1887 | M. Deering | Power-hammer | drop hammers |
| 1,053,744 | Feb. 18, 1913 | J.H. Philips | Spring Hammer | riveting tools |
| 2,619,072 | Nov. 25, 1952 | E.C. Clarke, Jr., P.A. Rickrode | Drop hammer control | drop hammers |
| 5,715,724 | Feb. 10, 1998 | C.J. Crout, R.N. Harris | Adaptive, self-regulating forging hammer control system | drop hammers |
