| All Patents in class 417/310 |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 974,913 | Nov. 08, 1910 | J.W. von Pittler | Rotary compressor of the like | air compressors |
| 1,460,875 | Jul. 03, 1923 | A. White | Rotary gear pump | |
| 1,804,133 | May 05, 1931 | W. Townsend | Unloading valve | pressure regulators |
| 2,497,247 | Feb. 14, 1950 | A. Von Wangenheim | Pump and Pressure Regulating Unit | vane pumps |
| 2,921,437 | Jan. 19, 1960 | E.J. Svenson | Material Working Apparatus | metalworking machine mechanisms |
| 3,100,450 | Aug. 13, 1963 | E.J. Svenson | Hydraulically Actuated Machine Tool | metalworking machine mechanisms |
