| All Patents in class 72/456 |
Patents 31 -
45
of 45
      |
| Number | Date | Patentee | Title | Type |
| 1,086,508 | Feb. 10, 1914 | H.O. Brown | Tool Guide and Holder | tool holders |
| 1,154,666 | Sep. 28, 1915 | H.C. Smith | Power Hammer | power hammers |
| 1,194,653 | Aug. 15, 1916 | J.H. Montstream | Drop Hammer | drop hammers |
| 1,221,421 | Apr. 03, 1917 | G.F. Crosiar | Power Hammer | |
| 1,277,985 | Sep. 03, 1918 | W. Merrill | Drop Hammer | drop hammers |
| 1,380,326 | May 31, 1921 | W.W. Stoler | Drop Hammer | drop hammers |
| 1,400,166 | Dec. 13, 1921 | E.F. Karlson | Power Hammer | power hammers |
| 1,441,047 | Jan. 02, 1923 | W. Vollmer | Machine for Bending Metal | metal bending machines |
| 1,670,493 | May 22, 1928 | M.C. Talcott, G.C. Prime, R.S. Clark | Drop Hammer | drop hammers |
| 1,707,499 | Apr. 02, 1929 | M.C. Talcott | Drop Hammer | drop hammers |
| 2,263,680 | Nov. 25, 1941 | W.H. Fitzgerald, R.P. Fitzgerald | Drop hammer | drop hammers |
| 2,642,114 | Jun. 16, 1953 | R.J. Ebert, C.J. Bath | Metal Forming Press | metal bending machines |
| 2,942,503 | Jun. 28, 1960 | R.P. Fitzgerald | Power operated hammers | drop hammers |
| 2,995,169 | Aug. 08, 1961 | F.E. Munschauer, Jr. | Press brake | sheet metal brakes |
| 3,619,013 | Nov. 09, 1971 | G.H. Jones | Preloaded Hydrostatic Way Bearing | metalworking machine bearings |
