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| All Patents in class 416/193R | |||||
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| Number | Date | Patentee | Title | Type | |
| 16,881 | Mar. 24, 1857 | S. Reynolds | Improved water-wheel | water wheels | |
| 195,855 | Oct. 02, 1877 | E.R. Stilwell | Turbine Water-Wheels | turbine water wheels | |
| 1,950,777 | Mar. 13, 1934 | G.A. Biggs | Hydraulic Turbine | turbine water wheels | |