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| Patents for Charles Harrigan | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 494,529 | Mar. 28, 1893 | H.F. Jenks | Pipe Wrench | |
 | 578,764 | Mar. 16, 1897 | N. Nelson | Device for Tightening Gage-Bars | |