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| All Patents in class 415/87 | |||||
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| Number | Date | Patentee | Title | Type | |
| 645,283 | Mar. 13, 1900 | J. Young | Turbine steam-engine | rotary steam engines | |
| 1,223,342 | Apr. 17, 1917 | W.J. London | Elastic Fluid Turbine | steam turbines | |