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| All Patents in class 415/199.3 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,135,364 | Apr. 13, 1915 | W.A. Doble | Turbine Pump | turbine water wheels | |
| 3,438,329 | Apr. 15, 1969 | T.W. Fuller | Multistage Hydraulic Pump Having Improved Diffuser Means | hydraulic pumps | |