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| Patents for A. T. Metcalf | |||||
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| Number | Date | Patentee | Title | Type | |
| 120,687 | Nov. 07, 1871 | A. Whitcomb | Improvement in Wrenches | nut wrenches | |
| 150,918 | May 12, 1874 | A. Whitcomb | Improvement in machines for making eaves-troughs | specialty woodworking machines | |