| All Patents in class 100/46 |
Patents 1 -
7
of 7
      |
| Picture | Number | Date | Patentee | Title |
| | 1,900,050 | Mar. 07, 1933 | W. Ernst | Hydraulic Press Platen Travel Equalizer |
| | 2,978,976 | Apr. 11, 1961 | M.W. Hazelton, R.E. Griesheimer, C.J. Ostendorf | Level control for press brakes and the like |
 | 3,059,431 | Oct. 23, 1962 | F.E. Munschauer, Jr., G.H. Trautman, Jr., C.O. Jones, Jr. | Hydraulic power transmission systems for press brakes and like machines |
| | 3,120,799 | Feb. 11, 1964 | H.B. Van Auken, J.J. Strnad | Platen-leveling control system for hydraulically-actuated brake presses |
| | 4,148,203 | Apr. 10, 1979 | B.R. Everett, A. Farazandeh | Computer-controlled press brake |
 | 4,828,474 | May 09, 1989 | R. Ballantyne | Hydraulic cylinder device for platen spacing indication and control |
 | 5,156,782 | Oct. 20, 1992 | R. Ballantyne | Maintaining press platens in parallel relationship |
