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| All Patents in class 83/200 | |||||
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| Number | Date | Patentee | Title | Type | |
| 146,846 | Jan. 27, 1874 | W.X. Stevens | Improvement in shears for cutting off bar-iron | metalworking machines | |
| 833,294 | Oct. 16, 1906 | G.J. Blum | Punching and shearing mechanism | metal punching machines | |
| 1,389,565 | Aug. 30, 1921 | J. Jensen | Machine element | metal punching machines | |
| 1,831,447 | Nov. 10, 1931 | R. Heinrich | Metal cutting instrument | metal shearing machines | |
| 5,170,689 | Dec. 15, 1992 | J. Dvorak | Metal working machine | metal punching machines | |