| All Patents in class 60/430 |
Patents 1 -
10
of 12
      |
| Picture | Number | Date | Patentee | Title |
 | 424,040 | Mar. 25, 1890 | J.H. Vaile | Press for oil-seeds |
| | 1,835,977 | Dec. 08, 1931 | L.F. Nenninger, H. Ernst | Hydraulic System |
| | 1,835,978 | Dec. 08, 1931 | L.F. Nenninger, H. Ernst | Multiple Closed Circuit Hydraulic ystem |
| | 1,835,979 | Dec. 08, 1931 | L.F. Nenninger, H. Ernst | Three-Pump Hydraulic System |
| | 1,945,632 | Feb. 06, 1934 | R.E. Flanders | Machine Tool and Hydraulic Feed Mechanism Therefor |
| | 1,996,466 | Apr. 02, 1935 | H. Ernst | Pressure Responsive Hydraulic Feed Control Mechanism |
| | 2,006,311 | Jun. 25, 1935 | B. Sassen, H. Ernst | Leakage Compensator for Hydraulic Systems |
| | 2,459,937 | Jan. 25, 1949 | H. Ernst, F.A. Hassman | Hydraulic Control System |
| | 2,522,783 | Sep. 19, 1950 | J.P. Golden | Hydraulic Pump and Circuit |
 | 2,537,391 | Jan. 09, 1951 | H.F. Bakewell | Hydraulic ram device with intermittent high-pressure fluid supply |
