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| All Patents in class 409/292 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 436,078 | Sep. 09, 1890 | W. Evans | Screw Cutting Attachment | ||
| 468,283 | Feb. 02, 1892 | G.M. Guerrant | Means for Moving and Guiding Turning Engraving or Plane Tools | ||