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US Patent: 169,027
Improvement in joiners' clamps
Patentee: Gustav Adolph Naumann (exact or similar names) - St. Louis, MO USPTO Classifications: 269/176, 269/182, 269/219 Tool Categories: work holding : clamps Assignees: None Manufacturer: Not known to have been produced Witnesses: Charles F. Meisner William W. Herthel	Patent Dates: Applied: Sep. 06, 1875 Granted: Oct. 19, 1875 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Carl Matthews
Description: This patent was subsequently improved in 174,838. Clamp is the "Jorgensen" style, but with a quick-release mechanism.

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