| All Patents in class 418/268 |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 776,882 | Dec. 06, 1904 | B.F. Augustine | Rotary Engine | rotary steam engines |
| 2,056,910 | Oct. 06, 1936 | L.L. Schauer | Hydraulic motor unit | metalworking machine mechanisms |
| 2,333,304 | Nov. 02, 1943 | C. Herfurth, A.H. Dall, H. Ernst | Surface Finishing Machinery | grinding machines |
| 2,377,299 | May 29, 1945 | A. Von Wangenheim | Rotary Pump | rotary pumps |
| 2,435,279 | Feb. 03, 1948 | E.F. Hubacker | Pump, vane type | |
| 2,497,247 | Feb. 14, 1950 | A. Von Wangenheim | Pump and Pressure Regulating Unit | vane pumps |
| 2,612,114 | Sep. 30, 1952 | W. Ernst | Vane Pump or Motor | hydraulic apparatus |
