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US Patent: 231,181
Pipe-grip
Patentee: Mortimer G. Lewis (exact or similar names) - Lowville, NY USPTO Classifications: 269/272, 269/282 Tool Categories: work holding : vises : pipe and chain vises Assignees: Hall Manufacturing Co. - New York, NY Manufacturer: Hall Manufacturing Co. - New York, NY Witnesses: A. M. Pierce Worth Osgood	Patent Dates: Applied: Jun. 30, 1880 Granted: Aug. 17, 1880 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Carl Matthews

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