| All Patents in class 72/441 |
Patents 31 -
45
of 56
      |
| Number | Date | Patentee | Title | Type |
| 750,359 | Jan. 26, 1904 | A. Groenig | Power Hammer | power hammers |
| 751,522 | Feb. 09, 1904 | A.A. Koch | Power Hammer | forging machines |
| 758,361 | Apr. 26, 1904 | H.W. Hathorn | Power Hammer | trip and helve hammers |
| 787,331 | Apr. 11, 1905 | H. Dorsch, J. Heinrich | Power Hammer | power hammers |
| 810,905 | Jan. 30, 1906 | A. Bragg | Power Hammer | power hammers |
| 837,519 | Dec. 04, 1906 | W.G. Simcock, G.H. Tolley | Power Hammer | power hammers |
| 855,730 | Jun. 04, 1907 | O.B. Reynolds | Power Hammer | power hammers |
| 950,594 | Mar. 01, 1910 | G.H. Condict | Forging Machine | power hammers |
| 955,623 | Apr. 19, 1910 | W.H. Welch | Power Hammer | power hammers |
| 977,082 | Nov. 29, 1910 | C.R. Embry | Power Hammer | power hammers |
| 1,007,159 | Oct. 31, 1911 | S.A. Thornburg | Power Hammer | power hammers |
| 1,048,127 | Dec. 24, 1912 | S. Baumgartner | Forging Machine | trip and helve hammers |
| 1,103,918 | Jul. 14, 1914 | J.F. Overcash | Hammer | trip and helve hammers |
| 1,154,666 | Sep. 28, 1915 | H.C. Smith | Power Hammer | power hammers |
| 1,173,525 | Feb. 29, 1916 | P.H. Leckinger | Riveting Hammer | riveting machines |
