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| All Patents in class 415/174.1 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 172,140 | Jan. 11, 1876 | J.L. Brown, J.B. McCormick | Turbine Water-Wheel | ||
| 403,731 | May 21, 1889 | B.B. Bower | Water Motor | ||
| 446,061 | Feb. 10, 1891 | L.J. Everest | Rotary Engine | ||
| 1,114,238 | Oct. 20, 1914 | W.A. Doble | Adjustable Wear Ring | ||
| 2,277,210 | Mar. 24, 1942 | R.V. Cook | Peripheral Pump | ||
| 2,578,780 | Dec. 18, 1951 | C.D. Bower | Rotary Pump Seal | ||