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| All Patents in class 172/680 | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,052 | Apr. 15, 1843 | J. Gallatin | Improvement in Plows | plows | |
| 79,547 | Jul. 07, 1868 | G.W. Zeigler, W.D. Burgess | Plow | plows | |
| 111,975 | Feb. 21, 1871 | A. Rickard | Improvement in plows | ||
| 331,284 | Dec. 01, 1885 | J.R. Davis | Clevis | clevises | |
| 865,141 | Sep. 03, 1907 | H. Wiard | Plow | plows | |
| 976,721 | Nov. 22, 1910 | H.C. Clay | Gang Plow | traction engine accessories | |