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US Patent: 30,660
Clamp for holding cylinders to be polished
Patentee: George Williamson (exact or similar names) - Newark, NJ USPTO Classifications: 82/169 Tool Categories: work holding Assignees: H. E. Richards - Newark, NJ L. S. Goble - Newark, NJ Manufacturer: Not known to have been produced Witnesses: Charles H. Blanch James E. McBeth	Patent Dates: Granted: Nov. 13, 1860 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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