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| Patents Granted on 1848-02-01 | |||||
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| Number | Date | Patentee | Title | Type | |
| 5,422 | Feb. 01, 1848 | J.S. Lafitte | Spark Arrester | locomotive spark arresters | |
| 5,423 | Feb. 01, 1848 | R. Dillon | Hydraulic Engine | hydraulic pumps | |
| 5,429 | Feb. 01, 1848 | D.S. Billings | Wheel-Cultivator | cultivators and tillers | |