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| All Patents in class 470/106 | |||||
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| Number | Date | Patentee | Title | Type | |
| 362,054 | May 03, 1887 | T. Baum | Machine for Dressing the Surfaces of Metal Articles | metal slotting machines | |
| 910,941 | Jan. 26, 1909 | A.L. Mowry | Machine for slotting nuts | nut or bolt making machines | |
| 1,958,705 | May 15, 1934 | W.F. Klein | Apparatus for Thin Wall Broaching | ||