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US Patent: 664,512
Chaser Grinding Machine
Patentee: Jacob B. Wallace (exact or similar names) - Erie, Erie County, PA USPTO Classifications: 451/369 Tool Categories: metalworking machines : grinders : sharpening machines Assignees: None Manufacturer: Modern Tool Co. - Erie, Erie County, PA Witnesses: R. F. Lanza H. C. Lord George E. Shafer	Patent Dates: Applied: May 15, 1900 Granted: Dec. 25, 1900 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Modern Tool Co.

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