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US Patent: 670,533
Expanding-mandrel and chuck
Patentee: Anthony Albert Augustus Byrd (exact or similar names) - Edmonton, England USPTO Classifications: 279/32, 403/371, 82/169 Tool Categories: metalworking tools : mandrels and arbors Assignees: None Manufacturer: Western Tool & Mfg. Co. - Springfield, OH Witnesses: A. Nutting H. D. Jameson	Patent Dates: Applied: Jun. 19, 1900 Granted: Mar. 26, 1901 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Western Tool & Mfg. Co.

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