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| Patents for L. Stone | |||||
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| Number | Date | Patentee | Title | Type | |
| 30,987 | Dec. 18, 1860 | E. Ripley | Improvements in Wrenches | screw adjust wrenches | |
| 31,034 | Jan. 01, 1861 | E. Ripley | Improvements in Wrenches for Turning Pipes, Round Bolts, and Similar Articles | pipe wrenches | |