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| All Patents in class 415/175 | |||||
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| Number | Date | Patentee | Title | Type | |
| 642,949 | Feb. 06, 1900 | P.B. Verity, J.L. Baillie | Combustion Engine | gas turbines | |
| 1,137,948 | May 04, 1915 | E. Buehle | Pressure Turbine | turbine water wheels | |
| 2,068,536 | Jan. 19, 1937 | D.P. Davies | Pump | centrifugal pumps | |
| 2,156,161 | Apr. 25, 1939 | R.H. Owens | Sealing device | pump stuffing boxes and seals | |