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US Patent: 1,603,280
Die Head for Threading Machines and the Like
Patentee: Leslie S. Hall (exact or similar names) - Erie, Erie County, PA USPTO Classifications: 408/174, 470/77 Tool Categories: metalworking tools : tap and die holders Assignees: Williams Tool Corp. - Erie, Erie County, PA Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Mar. 25, 1925 Granted: Oct. 19, 1926 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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