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| All Patents in class 241/223 | |||||
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| Number | Date | Patentee | Title | Type | |
| 200,361 | Feb. 12, 1878 | S.R. Thompson | Improvement in bark-cutting machines | bark processing machines | |
| 1,121,684 | Dec. 22, 1914 | O.C. Wysong | Dovetailing-machine | dovetailing machines | |