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| All Patents of Type: coffee cleaners | |||||
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| Number | Date | Patentee | Title | Type | |
| 393,411 | Nov. 27, 1888 | P. Sheridan | Grain Separator | corn and grain separators | |
| 1,080,066 | Dec. 02, 1913 | H.L. Johnston | Refining-machine for coffee and the like | coffee cleaners | |