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| Patents for Henry R. Sillman | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 244,940 | Jul. 26, 1881 | H.R. Sillman | Bobbin lathe | |
 | 245,233 | Aug. 02, 1881 | H.R. Sillman | Bobbin lathe | |
 | 253,778 | Feb. 14, 1882 | H.R. Sillman | Machine for making spools, &c. | |