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| Patents for Atlantic Works (Boston) | |||||
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| Number | Date | Patentee | Title | Type | |
| 11,223 | Jul. 04, 1854 | W.C. Hibbard | Regulating the motion of steam-engines | steam engines | |
| 21,756 | Oct. 12, 1858 | W.C. Hibbard | Improvement in centrifugal pumps | rotary pumps | |