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| All Patents in class 33/22 | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,849 | Dec. 07, 1844 | C.B. Rogers | Machine for Filing Saws | ||
| 2,110,873 | Mar. 15, 1938 | P.M. Henkes, G. Gorton | Engraving Machine | metal engraving machines | |