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| Patents for Hiram W. Hayden | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 8,589 | Dec. 16, 1851 | H.W. Hayden | Machinery for Making Kettles and Articles of Like Character from Disks of Metal | |
| RE2,171 | Feb. 13, 1866 | H.W. Hayden | Making Brass Kettles | ||
| RE3,996 | May 24, 1870 | H.W. Hayden | Making Brass Kettles | ||