| All Patents in class 100/269.14 |
Patents 1 -
13
of 13
      |
| Number | Date | Patentee | Title | Type |
| 1,510,205 | Sep. 30, 1924 | J.T. Beaty | Cotton tamper | |
| 1,653,350 | Dec. 20, 1927 | W. Ernst | High Speed Hydraulic Press | hydraulic presses |
| 1,672,561 | Jun. 05, 1928 | W. Ernst | High Speed Hydraulic Press | hydraulic presses |
| 1,746,419 | Feb. 11, 1930 | W. Ernst | Control Mechanism for Hydraulic Presses | hydraulic presses |
| 1,870,499 | Aug. 09, 1932 | W. Ernst | Hydraulically Operated Drop Hammer | drop hammers |
| 1,870,501 | Aug. 09, 1932 | W. Ernst | Plural Pressure Pump Control for Hydraulic Presses | hydraulic pump controls |
| 1,899,678 | Feb. 28, 1933 | R. Thoreson, H.F. MacMillin, W. Ernst | Hydraulic Press | hydraulic presses |
| 1,927,583 | Sep. 19, 1933 | W. Ernst | Hydraulic Motor Control Means | hydraulic motor controls |
| 1,937,192 | Nov. 28, 1933 | H.F. MacMillin, W. Ernst | Control Mechanism for Hydraulic Motors | hydraulic motor controls |
| 1,940,668 | Dec. 26, 1933 | W. Ernst | Hydraulic Press Surge Control | hydraulic presses |
| 1,952,663 | Mar. 27, 1934 | W. Ernst | Control Mechanism for Pumps and Associated Press Circuits | hydraulic pump controls |
| 2,937,606 | May 24, 1960 | R.A. Paulton | Metal Forming Press | hydraulic metalworking presses |
| 5,237,916 | Aug. 24, 1993 | L. Malashenko | Regenerative hydraulic cylinders with internal flow paths | hydraulic metalworking presses |
