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| Patents for Appleton P. Clark | |||||
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| Number | Date | Patentee | Title | Type | |
| 381,263 | Apr. 17, 1888 | W.J. Liddell | Baling-press | hay or straw binders | |
| 422,145 | Feb. 25, 1890 | J.P. Herron, E. Morrison | Fabric Testing Machine | textile machines | |