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| Patents for John S. Thornton | |||||
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| Picture | Number | Date | Patentee | Title | |
| 116,131 | Jun. 20, 1871 | H.R. Worthington | Improvement in steam pumping-engines | ||
 | 152,364 | Jun. 23, 1874 | J.P. Grosvenor | Improvement in hand-planers | |