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| Patents for Zebulon E. Coffin | |||||
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| Number | Date | Patentee | Title | Type | |
| 58,069 | Sep. 18, 1866 | Z.E. Coffin | Improved capstan-windlass | boats and ships | |
| 80,143 | Jul. 21, 1868 | Z.E. Coffin | Improvement in hydrants | hydrants | |
| 243,691 | Jul. 05, 1881 | Z.E. Coffin | Hydrant-valve | hydrants | |