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| Patents for Andrew P. Hawn | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,215,372 | Feb. 13, 1917 | A.P. Hawn | Tractor | internal combustion traction engines | |
| 1,289,462 | Dec. 31, 1918 | A.P. Hawn | Gang Plow | plows | |