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| Patents for Walter Donaldson | |||||
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| Number | Date | Patentee | Title | Type | |
| 286,653 | Oct. 16, 1883 | H.A. Thompson | Wrench | screw adjust wrenches | |
| 389,400 | Sep. 11, 1888 | E.C. Mead | Wrench | screw adjust wrenches | |
| 459,629 | Sep. 15, 1891 | W.R. Fox | Shaping Machine | metal shapers | |
| 468,601 | Feb. 09, 1892 | G.W. Gorsuch | Pipe Wrench and Cutter | pipe wrenches | |
| 549,575 | Nov. 12, 1895 | A.D. Lytle, A.D. Lynn | Planer | wood planers | |
| 571,012 | Nov. 10, 1896 | C. Neracher | Sprinkler | ||
| 748,199 | Dec. 29, 1903 | A. Mason | Matching-Plane | match planes | |