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| All Patents in class 180/53.7 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,252,356 | Jan. 01, 1918 | L. Mayer, E.A. Bye | Tractor | tractors | |
| 4,600,070 | Jul. 15, 1986 | G.H. Thurner | Modular tiller hitch for a lawn and garden tractor | ||