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US Patent: 409,253
Screw Cutting Die Stock
Patentees: James H. Sternbergh (exact or similar names) - Reading, Berks County, PA Robert Pemberton (exact or similar names) - Reading, Berks County, PA USPTO Classifications: 408/151 Tool Categories: metalworking tools : tap and die holders Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Apr. 19, 1889 Granted: Aug. 20, 1889 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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