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| Patents for Alfred Elwell | |||||
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| Number | Date | Patentee | Title | Type | |
| 66,652 | Jul. 09, 1867 | S.L. Tracy | Improved Combination-Wrench | wrench combination tools | |
| 183,088 | Oct. 10, 1876 | L.H. Watson | Portable Forge | blacksmith | |