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| Patents Granted on 1833-03-01 | |||||
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| Number | Date | Patentee | Title | Type | |
| 7,456X | Mar. 01, 1833 | B. Lapham | Process of converting lard or tallow into separate substances | ||
| 7,457X | Mar. 01, 1833 | S. West | Thrashing machine and clover seed machine | threshers and thrashers | |