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| Patents Granted on 1809-12-20 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,180X | Dec. 20, 1809 | W.E. Sheffield | Machine for sawing felloes | other wood sawing machines | |
| 1,181X | Dec. 20, 1809 | E. Ford | Floating mill and silent fisher | ||