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| Patents Granted on 1830-03-06 | |||||
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| Number | Date | Patentee | Title | Type | |
| 5,862X | Mar. 06, 1830 | S. Long | Wooden or frame bridges | bridges | |
| 5,863X | Mar. 06, 1830 | R.S. McEwen, H. Shively | Churn | churns | |