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| Patents Granted on 1827-05-23 | |||||
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| Number | Date | Patentee | Title | Type | |
| 4,766X | May 23, 1827 | W.B. Leonard | Delivering the yarn uniformly in the power loom | looms | |
| 4,767X | May 23, 1827 | W.B. Leonard | Taking up the cloth uniformly in the power loom | looms | |