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| All Patents in class 241/271 | |||||
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| Number | Date | Patentee | Title | Type | |
| 7,514 | Jul. 16, 1850 | D. Stiles, Jr. | Feeding apparatus of straw-cutters | hay or straw cutters | |
| 230,611 | Aug. 03, 1880 | J.C. Butterfield | Stamp-mill | ore processing apparatus | |
| 563,217 | Jun. 30, 1896 | H. Bolthoff | Ore-feeder for stamp-mills | ore processing apparatus | |
| 1,539,286 | May 26, 1925 | V.J. Wahlstrom | Tobacco cutter | tobacco machinery | |