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| Patents for S. M. Hamilton | |||||
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| Number | Date | Patentee | Title | Type | |
| 81,776 | Sep. 01, 1868 | S.M. Hamilton | Improvement in planing-machines | wood shapers | |
| 81,898 | Sep. 08, 1868 | S.M. Hamilton | Improvement in planing-machines | wood shapers | |