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| All Patents in class 198/851 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 562,756 | Jun. 23, 1896 | C.W. Blood | Chain-feed for woodworking machines | |
 | 1,746,697 | Feb. 11, 1930 | R.D. Eaglesfield | Conveyer | |
 | 2,593,324 | Apr. 15, 1952 | T.C. Mann | Conveyer chain | |