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| Patents Granted on 1851-11-04 | |||||
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| Number | Date | Patentee | Title | Type | |
| 8,481 | Nov. 04, 1851 | J. Ericsson | Engine for Producing Motive Power | hot air engines | |
| 8,497 | Nov. 04, 1851 | G.W. Beardslee | Planing-machine | wood planers | |
| 8,499 | Nov. 04, 1851 | L.S. Chichester | Machine for dressing staves | barrel making machines | |