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| Patents for George W. Southwick | |||||
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| Number | Date | Patentee | Title | Type | |
| 77,776 | May 12, 1868 | J.H. Gillett, G.W. Southwick | Improvement in shingle machines | shingle machines | |
| 431,175 | Jul. 01, 1890 | G.W. Southwick | Belt-fastener | belts, belt lacing and belt lacers | |