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US Patent: 183,797
Machines for Punching and Swaging Metal
Patentee: Luke Chapman (exact or similar names) - Collinsville, Hartford County, CT USPTO Classifications: 72/358, 72/432, 72/469, 76/6 Tool Categories: metalworking machines : metal punching machines metalworking machines : metal swaging machines Assignees: Collins Co. - Collinsville, Hartford County, CT Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Feb. 24, 1875 Granted: Oct. 31, 1876 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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