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| Patents Granted on 1846-07-28 | |||||
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| Number | Date | Patentee | Title | Type | |
| 4,671 | Jul. 28, 1846 | S. Groom | Making Wood Screws | screw machines | |
| 4,674 | Jul. 28, 1846 | A. McBurth | Using cloth to strengthen veneer | veneer machines | |