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| All Patents in class 7/114 | |||||
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| Number | Date | Patentee | Title | Type | |
| 138,447 | Apr. 29, 1873 | G. Stevenson | Corn Knives | miller | |
| 671,231 | Apr. 02, 1901 | R.E. Poindexter | Corn-cutter | ||
| 843,399 | Feb. 05, 1907 | T.J. King | Weeding and Cultivating Device | ||