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| Patents for Halsey D. Walcott | |||||
| Number | Date | Patentee | Title | Type | |
| 9,158 | Jul. 27, 1852 | H.D. Walcott | Graduated cutter for cloth and other substances | button hole cutters | |
| 14,546 | Mar. 25, 1856 | H.D. Walcott | Wrench | ratchet wrenches | |