| All Patents in class 100/258R |
Patents 1 -
5
of 5
      |
| Number | Date | Patentee | Title | Type |
| 1,900,050 | Mar. 07, 1933 | W. Ernst | Hydraulic Press Platen Travel Equalizer | hydraulic presses |
| 2,185,096 | Dec. 26, 1939 | R.B. Treer | Press | stamping presses |
| 3,120,799 | Feb. 11, 1964 | H.B. Van Auken, J.J. Strnad | Platen-leveling control system for hydraulically-actuated brake presses | hydraulic metalworking presses |
| 3,469,435 | Sep. 30, 1969 | G.H. Trautman, Jr. | Level control for hydraulic press brakes and the like | stamping presses |
| 4,828,474 | May 09, 1989 | R. Ballantyne | Hydraulic cylinder device for platen spacing indication and control | hydraulic metalworking presses |
