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| All Patents in class 241/261.1 | |||||
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| Number | Date | Patentee | Title | Type | |
| 8,594X | Jan. 16, 1835 | J. Burns, J. Walter | Sausage machine | ||
| 4,237 | Oct. 25, 1845 | I. Scudder | Bark-mill | bark processing machines | |
| 220,626 | Oct. 14, 1879 | W.D. Leavitt | Improvement in machines for manufacturing flour | grist mills | |