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US Patent: 16,337
Grooving Sheet-Metal
Patentee: J. J. Laubach (exact or similar names) - Easton, Northampton County, PA USPTO Classifications: 72/220 Tool Categories: metalworking machines : sheet metal Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Granted: Jan. 06, 1857 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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