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Patents Granted on 1803-03-24 | |||||
Number | Date | Patentee | Title | Type | |
438X | Mar. 24, 1803 | G. Hunter | Improvement in the Process of Manufacturing Sea Salt | manufacturing salt | |
439X | Mar. 24, 1803 | J. Picornell, M.D. Peter | Improvement in the mode of obtaining antiseptic gas |