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| All Patents in class 101/321 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 9,445X | Mar. 02, 1836 | I. Adams | Printing press power | |
 | 3,716 | Aug. 23, 1844 | A. Gilman | Improvement in Pritnting Presss | |
 | 5,188 | Jul. 10, 1847 | R.M. Hoe | Improvement in printing-presses | |
 | RX-116 | Jun. 13, 1848 | I. Adams | Improvement in Power Printing Presses | |
 | 9,410 | Nov. 16, 1852 | S.P. Ruggles | Improvement in Printing-Presses | |