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| Patents for Andrew L. Hill | |||||
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| Number | Date | Patentee | Title | Type | |
| 154,046 | Aug. 11, 1874 | A.L. Hill | Hog-Ringing Nippers | hog ring | |
| 158,274 | Dec. 29, 1874 | A.L. Hill | Hog-holding Implements | hog tongs | |
| 207,966 | Sep. 10, 1878 | A.L. Hill | Snout-Ring | hog ring | |
| 243,895 | Jul. 05, 1881 | A.E. Hill | Hog Ringing Implement | hog ring | |