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| Patents Granted on 1833-03-19 | |||||
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| Number | Date | Patentee | Title | Type | |
| 7,491X | Mar. 19, 1833 | R. Rittenhouse | Clover seed and corn shelling machine | clover hullers | |
| 7,492X | Mar. 19, 1833 | R. Ritenhouse | Rolling metallic plates with projections thereon | metalworking machines | |
| 7,493X | Mar. 19, 1833 | J. Wagner | Machine for cutting sausage | ||
| 7,494X | Mar. 19, 1833 | F. Wingate | Covering hay and grain | hay or straw covers | |