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| Patents for D. A. Carpenter | |||||
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| Number | Date | Patentee | Title | Type | |
| 396,600 | Jan. 22, 1889 | A.M. Rowland | Glass-Cutter | glass cutters | |
| 414,772 | Nov. 12, 1889 | W.H. Kaltenbeck | Monkey Wrench | quick adjust wrenches | |