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| All Patents in class 415/69 | |||||
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| Number | Date | Patentee | Title | Type | |
| 52,353 | Jan. 30, 1866 | L.D. Wynkoop | Water Wheel | water wheels | |
| 69,294 | Sep. 24, 1867 | L.D. Wynkoop | Water Wheel | water wheels | |
| 313,621 | Mar. 10, 1885 | C.W. Rau | Double Acting Water Wheel | water wheels | |