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| Patents Granted on 1802-05-12 | |||||
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| Number | Date | Patentee | Title | Type | |
| 373X | May 12, 1802 | B. Allison | Mode of Improving Spirits | distilling | |
| 374X | May 12, 1802 | L. Du Pre | Scientific steelyards | steel maker | |
| 375X | May 12, 1802 | B. Ellicott | Machine for manufacturing salt | salt making apparatus | |
| 376X | May 12, 1802 | A. Law | New Plan for Printing Music | printer | |