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| All Patents in class 72/283 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 252,423 | Jan. 17, 1882 | E.B. Buckingham | Device for drawing metal tubes | |
| 441,927 | Dec. 02, 1890 | T.J. Bray | Machine for Cold Drawing Metallic Pipe | ||
| 3,464,251 | Sep. 02, 1969 | R.W. Johns | Tube Tapering Device With Variable Die Orifice | ||