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| Patents for Stephen Hurlbut | |||||
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| Number | Date | Patentee | Title | Type | |
| 6,378X | Feb. 14, 1831 | S. Hurlbut | Hat bodies | ||
| 6,584X | Jun. 13, 1831 | S. Hurlbut | Hat manufacturing by hardening on a cone | milliner | |