| All Patents in class 60/383 |
Patents 1 -
11
of 11
      |
| Number | Date | Patentee | Title | Type |
| 1,847,073 | Mar. 01, 1932 | W. Ernst | Hydraulic Press | hydraulic presses |
| 1,940,668 | Dec. 26, 1933 | W. Ernst | Hydraulic Press Surge Control | hydraulic presses |
| 2,000,420 | May 07, 1935 | L.L. Schauer, A.M. Sosa, J.H. McKewen | Hydraulic transmission system | radial drill presses |
| 2,042,247 | May 26, 1936 | L.H. Blood | Machine Tool | metalworking power transmission |
| 2,077,435 | Apr. 20, 1937 | F.A. Parsons | Machine Tool Transmission and Control | milling machines |
| 2,119,902 | Jun. 07, 1938 | L.H. Blood | Machine Tool Transmission and Control Mechanism | metal shapers |
| 2,160,217 | May 30, 1939 | E.J. Kingsbury | Machine tool unit with feeding mechanism | metalworking machine mechanisms |
| 2,365,748 | Dec. 26, 1944 | F.W. Curtis | Hydraulic Circuit | milling machines |
| 2,386,990 | Oct. 16, 1945 | P.A. Anderson, A.H. Swenson | Hydraulic system | |
| 2,573,098 | Oct. 30, 1951 | A.H. Dall, H. Ernst | Hydraulic Feed Mechanism | hydraulic apparatus |
| 2,921,437 | Jan. 19, 1960 | E.J. Svenson | Material Working Apparatus | metalworking machine mechanisms |
