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| Patents for Thomas H. Hartman | |||||
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| Number | Date | Patentee | Title | Type | |
| 261,274 | Jul. 18, 1882 | F.H. Sweet | Journal-box | woodworking power transmission | |
| 262,323 | Aug. 08, 1882 | E.A. Rowley | Machine-table | jointers | |
| 263,074 | Aug. 22, 1882 | F.H. Sweet | Device for straining scroll-saws | scrollsaws | |
| 265,887 | Oct. 10, 1882 | F.H. Sweet | Molding-machine | molders | |