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| Patents Granted on 1827-05-25 | |||||
| Number | Date | Patentee | Title | Type | |
| 4,768X | May 25, 1827 | S.K. Gauntt (Gaunt) | Machine for crushing corn with the cob | trade specific | |
| 4,769X | May 25, 1827 | S. Hempstead, Jr. | Water proof stiffening for hats | ||