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| Patents Granted on 1840-10-10 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,813 | Oct. 10, 1840 | R. Daniels | Machine for reducing worn-out cloths and silks of various kinds to the fibrous state, so as to be capable of being manufactured into cloth | ||
| 1,816 | Oct. 10, 1840 | J. Lindly | Improvement in Machines for Cutting Screws Upon the ends of the Rails of Bedsteads | woodworking horizontal borers | |