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| All Patents in class 72/276 | |||||
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| Number | Date | Patentee | Title | Type | |
| 252,423 | Jan. 17, 1882 | E.B. Buckingham | Device for drawing metal tubes | metalworking machines | |
| 292,562 | Jan. 29, 1884 | W.S. Kelley | Wire spoke | ||
| 2,465,705 | Mar. 29, 1949 | C.J. Bath | Contour Forming Machine | metal bending machines | |