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| Patents for Thomas Powell | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,029X | Dec. 03, 1813 | T. Powell | Multiplying reacting hollow cylinder | ||
| 6,156X | Oct. 01, 1830 | T. Powell | Rotary steam engine | steam engines | |
| 434,071 | Aug. 12, 1890 | T. Powell | Saw Filing Machine | woodworking machine sharpening mechanisms | |