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| Patents Granted on 1827-03-03 | |||||
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| Number | Date | Patentee | Title | Type | |
| 4,690X | Mar. 03, 1827 | L. Hoyt, E. Pierce | Blowing and striking for blacksmiths | blacksmith | |
| 4,691X | Mar. 03, 1827 | D. Myerle | Combined jacks and breastwork rope layer | rope maker | |
| 4,692X | Mar. 03, 1827 | B.P. Grinnell, H.P. Babbit, S. Davis | Making watch seals | trade specific | |