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US Patent: 136,153
Improvement in die-stocks for cutting screws
Patentee: John J. Grant (exact or similar names) - Greenfield, MA USPTO Classifications: 408/240 Tool Categories: wrenches : tap wrenches and die stocks Assignees: None Manufacturer: Wiley & Russell Manufacturing Co. - Greenfield, MA Witnesses: Hannah T. Reed Wendell T. Davis	Patent Dates: Granted: Feb. 25, 1873 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Stan Schulz "Vintage Machinery" entry for Wiley & Russell Manufacturing Co.

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