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Patents Granted on 1831-03-28 | |||||
Number | Date | Patentee | Title | Type | |
6,437X | Mar. 28, 1831 | A.G. Bill, G. Spalding | Loom for weaving, webbing, tape, etc. | looms | |
6,438X | Mar. 28, 1831 | J.K. Casey | Instituting and drawing lotteries |