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| Patents for D. Hammond | |||||
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| Number | Date | Patentee | Title | Type | |
| 96,287 | Oct. 26, 1869 | R.M. Thompson | Wrench | quick adjust wrenches | |
| 106,475 | Aug. 16, 1870 | R.V. Jones, H. Fessler | Wrench | self-adjust wrenches | |