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All Patents in class 172/116 | |||||
Number | Date | Patentee | Title | Type | |
111,404 | Jan. 31, 1871 | I.P. Tice | Improvement in Digging-Machines | steam traction engines | |
217,506 | Jul. 15, 1879 | B.S. Benson | Traction Engine and Steam Plow | steam traction engines | |
1,641,207 | Sep. 06, 1927 | G.T. Strite | Cultivating means |