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| Patents for Phineas Dow | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,336X | Jul. 12, 1810 | P. Dow | Splitting mill (Splitting leather) | splitting and shearing machinery | |
| 1,350X | Aug. 15, 1810 | P. Dow | Grecian chaise body | ||
| 2,823X | Aug. 08, 1817 | D. Treadwell, P. Dow | Screw machine | screw machines | |