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| All Patents in class 415/191 | |||||
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| Number | Date | Patentee | Title | Type | |
| 56,719 | Jul. 31, 1866 | J.W. Pugh, G.E. Corbin | Turbine Water Wheel | turbine water wheels | |
| 111,601 | Feb. 07, 1871 | J.P. Allen | Water Wheel | turbine water wheels | |
| RE5,407 | May 13, 1873 | J.P. Collins | Water Wheels | water wheels | |
| 589,422 | Sep. 07, 1897 | C.G. Curtis | Elastic Fluid Turbine | steam turbines | |
| 654,654 | Jul. 31, 1900 | H.T. Lawrence | Water Wheel | water wheels | |
| 2,727,680 | Dec. 20, 1955 | R.D. Robson, R.D. Madison, H.C. Burgin, W.R. Elliot | Centrifugal fan | ||