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| All Patents in class 417/80 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,623,466 | Dec. 30, 1952 | W.H. Tinker | Dual Discharge Pump | rotary pumps | |
| 2,713,826 | Jul. 26, 1955 | W.H. Tinker | Fluid Pumping System | fuel pumps | |