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| Patents for Hiram Foster | |||||
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| Number | Date | Patentee | Title | Type | |
| 15,634 | Aug. 26, 1856 | W. Fosket, B.S. Stedman | Machine for sizing comb-blanks | comb making machines | |
| 20,684 | Jun. 22, 1858 | H.S. Snow | Improvement in sewing-machines | sewing machines | |