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US Patent: 167,165
Improvement in die-stocks
Patentee: John J. Grant (exact or similar names) - Hartford, CT USPTO Classifications: 408/215, 408/231, 470/207 Tool Categories: wrenches : tap wrenches and die stocks Assignees: Pratt & Whitney Co. - Hartford, CT Manufacturer: Pratt, Whitney & Co. - Hartford, CT Witnesses: Theodore G. Ellis Wendell R. Curtis	Patent Dates: Applied: Jun. 04, 1875 Granted: Aug. 31, 1875 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Stan Schulz "Vintage Machinery" entry for Pratt & Whitney Co.

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