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| All Patents in class 82/57 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,325 | Nov. 03, 1841 | O.M. Inman, W. Bulkley | Machine for Cutting Tin and Other Metal | cutting and trimming machines | |
| 7,836 | Dec. 17, 1850 | J.F. Flanders | Machinery for Cutting and Binding Sheet Metal | sheet metal | |
| 28,027 | Apr. 24, 1860 | J. Waugh | Machine For Cutting Sheet Metal | ||
| 2,209,211 | Jul. 23, 1940 | H.C. Smith, Jr. | Circle Cutting Attachment For Rotary Shears | metal shearing machines | |