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| Patents for Joseph Roberts | |||||
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| Number | Date | Patentee | Title | Type | |
| 84,937 | Dec. 15, 1868 | J.F. Cook | Improvement in head-blocks | sawmill headblocks | |
| 646,035 | Mar. 27, 1900 | H.C. Pomeroy | Combined Riveting and Punching Machine | riveters | |