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| Patents for Iram Brewster | |||||
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| Number | Date | Patentee | Title | Type | |
| 6,003X | May 28, 1830 | I. Brewster | Churn | churns | |
| 6,792X | Oct. 10, 1831 | L.Y. Parke, I. Brewster | Cutting stone | stone cutting machines | |
| 7,919X | Dec. 31, 1833 | I. Brewster | Churn | churns | |
| 8,566X | Jan. 07, 1835 | I. Brewster | Churn | churns | |