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US Patent: 51,048
Die-Stock and Tap-Wrench
Patentees: William Holroyd (exact or similar names) - Waterford, Saratoga County, NY James Holroyd (exact or similar names) - Waterford, Saratoga County, NY USPTO Classifications: 126/92B, 408/184 Tool Categories: metalworking tools : tap and die holders Assignees: None Manufacturer: William Holroyd - Waterford, Saratoga County, NY Witnesses: J. Cramer, II Austin F. Park	Patent Dates: Granted: Nov. 21, 1865 Patent Pictures: [ 1 | 2 | 3 ] USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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