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| Patents Granted on 1804-03-19 | |||||
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| Number | Date | Patentee | Title | Type | |
| 533X | Mar. 19, 1804 | W. Jackson, W. Gilman | Improvement in the Bedstead, So Constructed That It May Be Taken Down and Removed by One Person in Case of Fire or on Other Occasions With Much Ease and Expedition | beds and bedsteads | |
| 534X | Mar. 19, 1804 | A. Frost | Machine for preparing tow for paper | printer | |
| 535X | Mar. 19, 1804 | B. Tyler | Wry Fly Applied to Mills | water wheels | |