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| All Patents in class 416/243 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,829,062 | Oct. 27, 1931 | H.C. Schneider | Wind Wheel Vane | wind power apparatus | |
| 1,989,966 | Feb. 05, 1935 | G.A. Biggs | Hydraulic Turbine | turbine water wheels | |
| 2,031,466 | Feb. 18, 1936 | A.A. Criqui | Fan | ||