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| Patents Granted on 1819-12-14 | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,146X | Dec. 14, 1819 | J. Cooper | Archimedean screw | ||
| 3,147X | Dec. 14, 1819 | F. Kalisky | Improvement in the apparatus for distilling | distilling apparatus | |