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| All Patents in class 198/840 | |||||
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| Number | Date | Patentee | Title | Type | |
| 31,779 | Mar. 26, 1861 | O.H. Burdett | Removing sawdust as it is formed | waste collection mechanisms | |
| 562,756 | Jun. 23, 1896 | C.W. Blood | Chain-feed for woodworking machines | woodworking machine mechanisms | |
| 1,809,054 | Jun. 09, 1931 | C.L. Mattison | Chain feed drive | woodworking machine stockfeeding mechanisms | |