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| All Patents in class 83/19 | |||||
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| Number | Date | Patentee | Title | Type | |
| 472,210 | Apr. 05, 1892 | W.H. Flinn | Tool for Cutting Sheet Metal and Wire | metal shearing machines | |
| 4,569,263 | Feb. 11, 1986 | M.L. Kravets | Method and apparatus for fine shearing | metal shearing machines | |