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| Patents for Joseph Broad | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,952X | Jun. 25, 1813 | J. Broad | Twisted screw gimlet | gimlets | |
| 2,070X | Mar. 01, 1814 | J. Broad | Rasping and grinding dye woods | excelsior machines | |