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| Patents for Joseph S. Foster | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 32,688 | Jul. 02, 1861 | J.S. Foster | Machine for felling trees | |
| 51,166 | Nov. 28, 1865 | J.S. Foster | Revolving Cylinder Engine | ||
| 123,095 | Jan. 30, 1872 | J.S. Foster | Gunpowder Engine | ||