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| All Patents in class 415/112 | |||||
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| Number | Date | Patentee | Title | Type | |
| 41,508 | Feb. 09, 1864 | B. Holly | Water Wheel | water wheels | |
| 86,469 | Feb. 02, 1869 | B.F. Sturtevant | Improvement in blowers | blowers | |
| 940,257 | Nov. 16, 1909 | C.V. Kerr | Centrifugal Pump | rotary pumps | |