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| Patents Granted on 1813-03-30 | |||||
| Number | Date | Patentee | Title | Type | |
| 1,904X | Mar. 30, 1813 | J. Share | Portable furnace for casting brass, etc. | industrial furnaces | |
| 1,905X | Mar. 30, 1813 | H. Abbott (Abbett) | Stoves for boiling | stoves | |
| 1,906X | Mar. 30, 1813 | G. Warrall | Stoves | stoves | |