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| Patents for R. S. Ferguson | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 334,538 | Jan. 19, 1886 | W.J. Muncaster | Lathe for Turning Shafting | |
 | 439,336 | Oct. 28, 1890 | G. Zitlow | Combination Tool | |
 | 441,844 | Dec. 02, 1890 | G.W. Hubbard | Nippers | |