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US Patent: 1,857,208
Chamfering Tool and Holder
Patentee: Henry R. Metz (exact or similar names) - Erie, Erie County, PA USPTO Classifications: 82/138 Tool Categories: metalworking machines : metal threading machines : pipe threading machines Assignees: Williams Tool Corp. - Erie, Erie County, PA Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Mar. 15, 1930 Granted: May 10, 1932 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for John H. Hall & Sons, Ltd. / Williams Tool Corp.

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