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| All Patents in class 72/194 | |||||
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| Number | Date | Patentee | Title | Type | |
| 75,893 | Mar. 24, 1868 | B.W. Foster | Machine for Making Carriage Axles | axle making machines | |
| 185,836 | Jan. 02, 1877 | C.H. Robison | Machines for Making Hexagonal Nut Blank Bars | nut or bolt making machines | |
| 432,635 | Jul. 22, 1890 | S. Moore | Machine for Making Twist Drills | making drills and augers | |