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| Patents for Eleazar Coffin | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 29,141 | Jul. 17, 1860 | E. Coffin | Mortising-machine | |
 | 31,301 | Feb. 05, 1861 | E. Coffin | Dovetailing-machine | |
 | 72,371 | Dec. 17, 1867 | E. Coffin | Improvement in machines for rounding corners of slate-frames | |