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| All Patents in class 415/202 | |||||
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| Number | Date | Patentee | Title | Type | |
| 867,407 | Oct. 01, 1907 | J.F. Patitz | Turbine-wheel | rotary steam engines | |
| 1,003,203 | Sep. 12, 1911 | C.B. Rearick | Elastic-Fluid Turbine | steam turbines | |
| 1,384,286 | Jul. 12, 1921 | L.E. Whiton, H.B. Lee | Steam-turbine | steam motors | |
| 1,537,465 | May 12, 1925 | E.C. Hutchinson | Louver Type Baffle Plate | water wheels | |