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| Patents for C. W. Forbes | |||||
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| Number | Date | Patentee | Title | Type | |
| 172,239 | Jan. 11, 1876 | E.T. Barlow | Wrench | wedge adjust wrenches | |
| 172,240 | Jan. 11, 1876 | E.T. Barlow | Improvement in Monkey-Wrenches | quick adjust wrenches | |
| 172,241 | Jan. 11, 1876 | E.T. Barlow | Monkey-Wrench | quick adjust wrenches | |