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| All Patents in class 415/127 | |||||
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| Number | Date | Patentee | Title | Type | |
| 110,667 | Jan. 03, 1871 | C.A. Mills | Motive Power | water wheels | |
| 1,877,617 | Sep. 13, 1932 | H. Strum | Pump | centrifugal pumps | |