| All Patents of Type: hydraulic metalworking presses |
Patents 1 -
15
of 39
      |
| Number | Date | Patentee | Title | Type |
| GB-185,602,577 | Nov. 03, 1856 | R. Wilson, J. Nasmyth | Hydraulic pumps and process for packing cotton and other articles of the like nature | hydraulic pumps |
| 45,103 | Nov. 15, 1864 | M. Wells | Machine for making sheet-metal ware | stamping presses |
| 336,604 | Feb. 23, 1886 | J. Fielding, R.H. Tweddell | Hydraulic Forging Press | forging presses |
| 728,628 | May 19, 1903 | C. Seymour | Hydraulic Press | hydraulic metalworking presses |
| CA-105,241 | May 14, 1907 | G.T. Reiss | Wheel press | hydraulic metalworking presses |
| CA-105,414 | May 21, 1907 | G.T. Reiss, J.K. Cullen | Car wheel press | hydraulic metalworking presses |
| CA-126,380 | Jun. 21, 1910 | A. Wood | Wheel press | hydraulic metalworking presses |
| CA-126,381 | Jun. 21, 1910 | G.T. Reiss | Car wheel press | hydraulic metalworking presses |
| 1,820,653 | Aug. 25, 1931 | H. Ernst | Hydraulic Valve | hydraulic metalworking presses |
| 1,861,337 | May 31, 1932 | W. Ernst | Hydraulic Metal Drawing Press | hydraulic metalworking presses |
| 1,870,527 | Aug. 09, 1932 | R.J. Pardee | Hydraulic connection for presses | hydraulic metalworking presses |
| 1,891,121 | Dec. 13, 1932 | R. Thoreson | Drawing Press or the Like | hydraulic metalworking presses |
| 2,077,894 | Apr. 20, 1937 | I. Patrick | Surge control valve for hydraulic presses | hydraulic metalworking presses |
| 2,127,324 | Aug. 16, 1938 | E. Cannon | Prefill valve for hydraulic presses | hydraulic metalworking presses |
| 2,152,837 | Apr. 04, 1939 | E. Cannon | Prefill valve for hydraulic presses | hydraulic metalworking presses |
