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| Patents for William Dennis | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 8,612 | Dec. 23, 1851 | J.M. Patton, W.F. Fergus | Cutter for planing-machines | |
 | 71,461 | Nov. 26, 1867 | A.H. Crozier | Improvement in water-wheels | |
 | 84,897 | Dec. 15, 1868 | C. Murdock | Improvement in stave-machine | |
 | 92,887 | Jul. 20, 1869 | M.O. Royce | Improvement in mitre-box | |