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| Patents for Ephraim Parce | |||||
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| Number | Date | Patentee | Title | Type | |
| 6,633X | Jul. 20, 1831 | E. Parce | Manufacturing pot ash and leaching ashes | manufacturing potash | |
| 7,975X | Jan. 23, 1834 | E. Parce | Potash Making | manufacturing potash | |