| All Patents in class 418/268 |
Patents 1 -
8
of 8
      |
| Picture | Number | Date | Patentee | Title |
 | 776,882 | Dec. 06, 1904 | B.F. Augustine | Rotary Engine |
 | 2,035,465 | Mar. 31, 1936 | W. Reinhardt, M.E. Erskine | Hydraulic Pump |
| | 2,056,910 | Oct. 06, 1936 | L.L. Schauer | Hydraulic motor unit |
| | 2,333,304 | Nov. 02, 1943 | C. Herfurth, A.H. Dall, H. Ernst | Surface Finishing Machinery |
| | 2,377,299 | May 29, 1945 | A. Von Wangenheim | Rotary Pump |
| | 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 |
| | 2,612,114 | Sep. 30, 1952 | W. Ernst | Vane Pump or Motor |
