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| Patents Granted on 1811-10-29 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,599X | Oct. 29, 1811 | S. Witherill, Jr. | Mode of washing white lead | manufacturing potash | |
| 1,600X | Oct. 29, 1811 | S. Witherill, Jr. | Setting the beds or stacks (by admission of air) in making white lead | manufacturing potash | |