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| Patents Granted on 1813-05-28 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,929X | May 28, 1813 | J.J. Cabell | Apparatus for boiling and manufacturing salt | ||
| 1,930X | May 28, 1813 | G. Smith | Preparing and manufacturing different parts of the asclepias or silk weed for thread or cordage | ||
| 1,931X | May 28, 1813 | C. Jackson | Machine for cutting and making files | files | |
| 1,932X | May 28, 1813 | S. Tousley | Bull plough | plows | |