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| Patents for William McDonald | |||||
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| Number | Date | Patentee | Title | Type | |
| 13,197 | Jul. 03, 1855 | W. McDonald | Machine for Mitering Printers' Rules | miter boxes | |
| 81,661 | Sep. 01, 1868 | W. McDonald | Improvement in hanging circular saws | circular saws | |
| CA-161 | Nov. 26, 1869 | W. McDonald | The Dominion Hay Fork | hay or straw forks | |
| 243,717 | Jul. 05, 1881 | W. McDonald | Edger | circular ripsaws | |