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US Patent: 1,673,979
Cutting off and reaming attachment for threading machines and the like
Patentee: Leslie S. Hall (exact or similar names) - Erie, PA USPTO Classifications: 470/58, 470/69, 82/117 Tool Categories: metalworking machines : metal threading machines : pipe threading machines metalworking machines : metal threading machines Assignees: Williams Tool Corp. - Erie, PA Manufacturer: Williams Tool Corp. - Erie, PA Witnesses: Unknown	Patent Dates: Applied: Mar. 25, 1925 Granted: Jun. 19, 1928 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Williams Tool Corp.

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