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US Patent: 71,442
Improvement in knife-sharpener
Patentee: Albert B. Bean (exact or similar names) - New Haven, CT USPTO Classifications: 76/86 Tool Categories: knives and cutters : sharpening apparatus Assignees: Lewis W. Upham - New Haven, CT Samuel C. Bradley - New Haven, CT Manufacturer: Not known to have been produced Witnesses: A. J. Tibbits John H. Shumway	Patent Dates: Granted: Nov. 26, 1867 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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