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| Patents for Walter Johnson | |||||
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| Number | Date | Patentee | Title | Type | |
| 5,960X | May 14, 1830 | W. Johnson, J. Douglas | Thrashing machine | threshers and thrashers | |
| 957,214 | May 10, 1910 | C.P. Johnson | Adjustable Wrench | screw adjust wrenches | |