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All Patents in class 172/421 | |||||
Number | Date | Patentee | Title | Type | |
134,540 | Jan. 07, 1873 | G.A. Groves | Gang-Plows | plows | |
359,125 | Mar. 08, 1887 | J.G. Cockshutt, E.H. Bond | Riding-plow | plows | |
472,302 | Apr. 05, 1892 | J.H. Linebarger | Plow | plows | |
838,478 | Dec. 11, 1906 | M.J. Todd | Road-Scarifer | scarifiers |