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| Patents for Lorenzo Norton | |||||
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| Number | Date | Patentee | Title | Type | |
| RE38 | May 17, 1842 | S. Merrick | Improvement in Screw Wrenches | nut wrenches | |
| RX-38 | May 17, 1842 | S. Merrick | Improvement in the Screw Wrenches | nut wrenches | |