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US Patent: 153,206
J-Clamp Improvement in Clamps
Patentee: Cornelius S. Van Wagoner (exact or similar names) - Brooklyn, NY USPTO Classifications: 269/171.5, 269/249 Tool Categories: work holding : clamps : bar and pipe clamps Assignees: None Manufacturer: Van Wagoner & Williams Hardware Co. - Brooklyn, NY Witnesses: William B. Hendenbeck M. E. Halsey	Patent Dates: Applied: Feb. 24, 1874 Granted: Jul. 21, 1874 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Carl Matthews Vintage Machinery entry for Van Wagoner & Williams Hardware Co.

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