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| Patents for Frank L. French | |||||
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| Number | Date | Patentee | Title | Type | |
| 250,493 | Dec. 06, 1881 | O. Brothers, Jr. | Lubricating Wrench | axle nut wrench combination tools | |
| 307,186 | Oct. 28, 1884 | F.L. French | Self-Adjustable Spring-Jaw Wrench | self-adjust wrenches | |