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US Patent: 37,332
Improvement in machines for drawing bolts and spikes
Patentee: John C. Chapman (exact or similar names) - Charlestown, MA USPTO Classifications: 12/16, 254/20, 29/262, 294/115 Tool Categories: specialty tools : nail extractors Assignees: None Manufacturer: Not known to have been produced Witnesses: Norman W. Stearns P. E. Teschemacher	Patent Dates: Granted: Jan. 06, 1863 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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