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| All Patents in class 12/137 | |||||
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| Number | Date | Patentee | Title | Type | |
| 14,647 | Apr. 15, 1856 | A.J. Barnhart | Securing and releasing blocks of lasts | shoemaking | |
| 223,263 | Jan. 06, 1880 | G.M. Wells | Last | shoemaking | |