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| Patents Granted on 1811-05-16 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,514X | May 16, 1811 | J.C. Johnson | Flax and hemp break | flax and hemp machines | |
| GB-181,103,448 | May 16, 1811 | W. Gilpin | Improved method of manufacturing augers | making drills and augers | |