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| Patents for Henry Wheaton Hewet | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,301 | Aug. 24, 1839 | H.W. Hewet | Improved Screw-Wrench | nut wrenches | |
| 1,659 | Jun. 27, 1840 | H.W. Hewet | Screw Wrench | nut wrenches | |
| 41,995 | Mar. 22, 1864 | H.W. Hewet | Hewet Union Wrench | nut wrenches | |
| 87,774 | Mar. 16, 1869 | H.W. Hewet | Mode of Constructing a Tubular Adjusting Screw-Wrench | nut wrenches | |