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US Patent: 88,885
Screw Forming Machine
Patentee: John L. Mason (exact or similar names) - New York, NY USPTO Classifications: 72/85 Tool Categories: metalworking machines : metal swaging machines metalworking machines : metal threading machines Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Granted: Apr. 13, 1869 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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