| All Patents in class 72/436 |
Patents 46 -
55
of 55
      |
| Number | Date | Patentee | Title | Type |
| 1,303,792 | May 13, 1919 | S. Hamilton | Hammer | foot operated hammers |
| 1,380,326 | May 31, 1921 | W.W. Stoler | Drop Hammer | drop hammers |
| 1,670,493 | May 22, 1928 | M.C. Talcott, G.C. Prime, R.S. Clark | Drop Hammer | drop hammers |
| 1,868,476 | Jul. 19, 1932 | F.J. Vlchek | Drop Hammer | drop hammers |
| 1,954,155 | Apr. 10, 1934 | F.J. Vlchek | Drop Hammer | drop hammers |
| 1,954,156 | Apr. 10, 1934 | F.J. Vlchek | Drop Hammer | drop hammers |
| 1,954,157 | Apr. 10, 1934 | F.J. Vlchek | Drop Hammer | drop hammers |
| 2,263,680 | Nov. 25, 1941 | W.H. Fitzgerald, R.P. Fitzgerald | Drop hammer | drop hammers |
| 2,345,563 | Apr. 04, 1944 | R.L. Alcorn, Jr. | Hydraulically operated drop hammer | drop hammers |
| 2,688,265 | Sep. 07, 1954 | C. Priesmeyer | Safety stop device for drop hammers or the like | drop hammers |
