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| All Patents in class 198/836.3 | |||||
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| Number | Date | Patentee | Title | Type | |
| 620,232 | Feb. 28, 1899 | W.W. Dingee | Straw Stacker | hay or straw stackers | |
| 1,443,104 | Jan. 23, 1923 | A. Hormel, C. Wagner | Drying apparatus for plates of metal and other material | ||