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| Patents for Wm. D. Andrews & Bro. | |||||
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| Number | Date | Patentee | Title | Type | |
| 11,544 | Aug. 22, 1854 | W.D. Andrews | Rotary Pump | rotary pumps | |
| 36,885 | Nov. 11, 1862 | W.D. Andrews | Oscillating Steam Engine | oscillating steam engines | |