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| Patents for J. J. Masson | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 357,628 | Feb. 15, 1887 | H. Price | Sheet-Metal Marking Gage | |
 | 366,648 | Jul. 19, 1887 | A.A. Coon | Wrench | |
 | 411,872 | Oct. 01, 1889 | G.F. Newell | Pipe Wrench | |