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US Patent: 438,406
Method of Utilizing Electricity in the Forming of Sheet Metal Articles
Patentee: Mark W. Dewey (exact or similar names) - Syracuse, Onondaga County, NY USPTO Classifications: 219/149, 72/69, 72/83 Tool Categories: metalworking machines : sheet metal : sheet metal bending machines Assignees: Dewey Corp. - Syracuse, Onondaga County, NY Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: May 17, 1890 Granted: Oct. 14, 1890 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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