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| Patents for J. Barrett & Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 8,808 | Mar. 16, 1852 | D. Stearns | Planing-machine | wood planers | |
| 9,993 | Sep. 06, 1853 | C. Montague | Improvement in printing-presses | printing presses | |