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| Patents Granted on 1826-12-29 | |||||
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| Number | Date | Patentee | Title | Type | |
| 4,619X | Dec. 29, 1826 | W. Harkins | Making Hats by the Application of Steam | making hats | |
| 4,620X | Dec. 29, 1826 | S. Boyden | Spinning | spinner | |
| 4,621X | Dec. 29, 1826 | J. Jacob | Lever engine for pendulum engine | ||
| 4,622X | Dec. 29, 1826 | E. Nott | Evolution and management of heat | furnaces | |
| 4,623X | Dec. 29, 1826 | S. Davis | Bedsteads | ||
| 4,624X | Dec. 29, 1826 | W. Lyman, J.W. Boott (Booth) | Fire places, forges, and furnaces | blacksmith | |