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