| All Patents in class 60/426 |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 1,672,561 | Jun. 05, 1928 | W. Ernst | High Speed Hydraulic Press | hydraulic presses |
| 1,900,050 | Mar. 07, 1933 | W. Ernst | Hydraulic Press Platen Travel Equalizer | hydraulic presses |
| 1,999,834 | Apr. 30, 1935 | H. Ernst | Multiple Hydraulic Motor Operation | hydraulic apparatus |
| 2,024,253 | Dec. 17, 1935 | E.G. Roehm, M. Romaine | Broaching Machine | broaching machines |
| 2,522,783 | Sep. 19, 1950 | J.P. Golden | Hydraulic Pump and Circuit | hydraulic pumps |
| 2,625,796 | Jan. 20, 1953 | W.A. Traut | Multispeed Hydraulic Power Device | |
| 4,706,456 | Nov. 17, 1987 | L.W. Durham, B.S. Backe | Method and Apparatus for Controlling Hydraulic Systems | machine tool controls |
