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| Patents for William H. Walker | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 41,552 | Feb. 09, 1864 | W.H. Walker | Improvement in shingle-sawing machines | |
 | 76,566 | Apr. 07, 1868 | W.H. Walker | Improvement in shingle-machines | |
 | 188,221 | Mar. 06, 1877 | W.H. Walker, L.R. Washburn | Improvement in cutter-heads | |
 | 300,363 | Jun. 17, 1884 | T. Harps | Guard for cutter-heads | |
 | 816,039 | Mar. 27, 1906 | G.E. Priest | Gang matching-machine | |
 | 1,120,071 | Dec. 08, 1914 | J.W. MacDonald, D.W. Robb | Steam-boiler construction | |