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| Patents Granted on 1803-01-?? | |||||
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| Number | Date | Patentee | Title | Type | |
| 416X | Jan. 01, 1803 | S. Rouse | Caboose of a vessel for distilling fresh from salt water | distilling apparatus | |
| 417X | Jan. 04, 1803 | G.F. Saltonstall | Saw mill for cleaning cotton | miller | |
| 418X | Jan. 07, 1803 | C. Hoxie | Machine for hulling rice | miller | |
| 419X | Jan. 27, 1803 | T. Moore | Refrigerator for domestic uses | ice boxes and refrigerators | |