| All Patents in class 72/453.13 |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 620,749 | Mar. 07, 1899 | A. Dinkel | Power Hammer | power hammers |
| 955,117 | Apr. 12, 1910 | F.I. Ellis | Pipe Crushing and Shearing Machine | metal shearing machines |
| 1,268,270 | Jun. 04, 1918 | R.W. Nazel | Fluid-power hammer | drop hammers |
| 1,861,337 | May 31, 1932 | W. Ernst | Hydraulic Metal Drawing Press | hydraulic metalworking presses |
| 2,007,290 | Jul. 09, 1935 | R.B. Treer | Power press | metalworking presses |
| 2,394,636 | Feb. 12, 1946 | F.J. Rode | Progressive drawing press | stamping presses |
