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Patents Granted on 1815-02-21 | |||||
Number | Date | Patentee | Title | Type | |
2,269X | Feb. 21, 1815 | H. Quin | Saw mills | sawmills | |
2,270X | Feb. 21, 1815 | J. Worsley | Granulating gunpowder | ||
2,271X | Feb. 21, 1815 | P.T. Jackson, F.C. Lovell | Looms | looms |