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| Patents for William A. Walker | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 29,513 | Aug. 07, 1860 | W.A. Walker, J. Olmstead | Machine for upsetting tires | |
 | 1,141,222 | Jun. 01, 1915 | W.A. Walker | Excelsior machine | |
 | 1,965,015 | Jul. 03, 1934 | W.A. Walker | Dual Control for Shapers | |