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| Patents for Joseph Briggs | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,175X | Jul. 09, 1814 | J. Briggs | Head block in carriage of a saw mill | sawmill headblocks | |
| 4,225X | Oct. 05, 1825 | J. Briggs | Machine for breaking and dressing flax | flax and hemp machines | |