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All Patents in class 74/450 | |||||
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Picture | Number | Date | Patentee | Title | |
379,198 | Mar. 06, 1888 | W.R. Fee | Wooden Split Pulley | ||
578,731 | Mar. 16, 1897 | F.L. Eberhardt, U. Eberhardt | Wrought Metal Gear Wheel and Mechanism for Making Same | ||
1,415,840 | May 09, 1922 | D.C. Klausmeyer | Sectional Inspective Nut |